Gold Upgrades

Gold upgrades can be bought while fighting on the battlefield. They reset with every prestige and have to be bought anew. There are two types of gold upgrades:

• Guardian and hero upgrades, strengthening your guardian or a specific hero in your party.
• Special upgrades, which buff Guardian Damage, Hero Damage, Hero Health, Hero Armor and Gold Earnings

Guardian and hero upgrades

Guardian and hero gold upgrades boost the damage of your guardian or all attributes (damage, health and armor) of a hero in your party. The cost of these upgrades starts with 100 gold for the first upgrade and increases by 12% per upgrade level:

cost = 100 * 1.12^level-2 gold

This cost can be reduced with the Level up Cost research.

The effect of these upgrades increases linearly with the upgrade level with an additional x2 boost every 25 upgrade levels and an additional x1.5 boost every 100 upgrade levels (yielding a total of x3 every 100 levels):

effect = level * 2^{⌊level / 25⌋} * 1.5^{⌊level / 100⌋}

Since the cost of an upgrade increases by a factor of 1.12 per level, the cost of successive milestones (25 level increments) increases by a factor of 1.12²⁵ ≈ 17.

Special upgrades

0-100	Name	Bonus	Cost
0	Guardian Damage	+200%	100
1	Heroes' Damage	+150%	300
2	Gold Earnings	+100%	400
3	Heroes' Health	+100%	600
4	Heroes' Armor	+100%	700
5	Heroes' Health	+100%	800
6	Gold Earnings	+200%	850
7	Heroes' Armor	+100%	900
8	Guardian Damage	+100%	950
9	Heroes' Damage	+125%	3000
10	Heroes' Armor	+120%	7000
11	Heroes' Health	+130%	12000
12	Guardian Damage	+50%	25000
13	Heroes' Armor	+130%	70000
14	Heroes' Damage	+170%	90000
15	Guardian Damage	+500%	300000
16	Gold Earnings	+220%	400000
17	Heroes' Damage	+100%	450000
18	Heroes' Armor	+100%	500000
19	Heroes' Health	+100%	560000
20	Guardian Damage	+100%	2.0E+6
21	Heroes' Damage	+200%	2.5E+6
22	Heroes' Armor	+400%	2.7E+6
23	Heroes' Health	+400%	2.9E+6
24	Gold Earnings	+150%	3.3E+6
25	Heroes' Health	+120%	2.5E+7
26	Gold Earnings	+133%	2.6E+7
27	Heroes' Armor	+220%	2.7E+7
28	Guardian Damage	+210%	2.8E+7
29	Heroes' Damage	+80%	3.0E+7
30	Gold Earnings	+100%	2.0E+8
31	Guardian Damage	+110%	2.5E+8
32	Heroes' Damage	+150%	3.0E+8
33	Heroes' Armor	+120%	3.5E+8
34	Heroes' Health	+140%	4.0E+8
35	Heroes' Damage	+180%	2.5E+9
36	Guardian Damage	+30%	2.7E+9
37	Gold Earnings	+90%	2.9E+9
38	Heroes' Armor	+70%	5.1E+9
39	Heroes' Health	+120%	5.5E+9
40	Gold Earnings	+100%	4.0E+10
41	Heroes' Damage	+100%	4.5E+10
42	Guardian Damage	+100%	5.0E+10
43	Heroes' Armor	+100%	5.5E+10
44	Heroes' Health	+100%	6.0E+10
45	Gold Earnings	+120%	3.5E+11
46	Heroes' Damage	+130%	5.5E+11
47	Guardian Damage	+110%	6.0E+11
48	Heroes' Armor	+120%	6.5E+11
49	Heroes' Health	+140%	7.0E+11
50	Gold Earnings	+150%	3.5E+12
51	Heroes' Damage	+160%	4.5E+12
52	Guardian Damage	+110%	5.0E+12
53	Heroes' Armor	+130%	5.5E+12
54	Heroes' Health	+160%	6.0E+12
55	Gold Earnings	+50%	4.0E+13
56	Heroes' Damage	+90%	5.1E+13
57	Guardian Damage	+40%	6.9E+13
58	Heroes' Armor	+90%	7.5E+13
59	Heroes' Health	+100%	8.4E+13
60	Gold Earnings	+90%	3E+15
61	Heroes' Damage	+110%	3E+15
62	Guardian Damage	+130%	5E+15
63	Heroes' Armor	+80%	5.55E+15
64	Heroes' Health	+150%	7.77E+15
65	Gold Earnings	+120%	6E+16
66	Heroes' Damage	+170%	6.5E+16
67	Guardian Damage	+330%	7E+16
68	Heroes' Armor	+180%	7.5E+16
69	Heroes' Health	+90%	8E+16
70	Gold Earnings	+200%	2.5E+17
71	Heroes' Damage	+250%	3.5E+17
72	Guardian Damage	+200%	4.5E+17
73	Heroes' Armor	+290%	6.5E+17
74	Heroes' Health	+300%	9.5E+17
75	Heroes' Damage	+100%	8E+18
76	Heroes' Armor	+300%	1E+19
77	Guardian Damage	+130%	1.8E+19
78	Heroes' Health	+50%	2.5E+19
79	Gold Earnings	+100%	4E+19
80	Guardian Damage	+117%	1E+20
81	Gold Earnings	+200%	1.3E+20
82	Heroes' Armor	+25%	4E+20
83	Heroes' Damage	+150%	6E+20
84	Heroes' Health	+233%	8E+20
85	Heroes' Damage	+120%	7E+21
86	Gold Earnings	+80%	1.5E+22
87	Heroes' Armor	+120%	6E+22
88	Heroes' Health	+180%	8E+22
89	Guardian Damage	+165%	1E+23
90	Heroes' Damage	+130%	1.5E+23
91	Guardian Damage	+88%	3E+23
92	Heroes' Health	+78%	5E+23
93	Heroes' Armor	+127%	6.5E+23
94	Gold Earnings	+230%	8.88E+23
95	Heroes' Damage	+170%	1.2E+25
96	Heroes' Armor	+189%	3E+25
97	Guardian Damage	+290%	6E+25
98	Gold Earnings	+150%	8E+25
99	Heroes' Health	+96%	2.7E+26
100	Heroes' Damage	+80%	3.5E+26

101-200	Name	Bonus	Cost
101	Heroes' Armor	+73%	5.55E+26
102	Guardian Damage	+28%	6E+26
103	Heroes' Health	+155%	7E+26
104	Gold Earnings	+140%	8E+26
105	Guardian Damage	+175%	2.5E+28
106	Gold Earnings	+180%	4.5E+28
107	Heroes' Armor	+222%	9E+28
108	Heroes' Damage	+200%	1.4E+29
109	Heroes' Health	+195%	2.1E+29
110	Heroes' Damage	+66%	2.5E+29
111	Gold Earnings	+110%	3.33E+29
112	Heroes' Armor	+55%	4.8E+29
113	Heroes' Health	+69%	5.6E+29
114	Guardian Damage	+81%	7.7E+29
115	Heroes' Damage	+300%	4E+30
116	Guardian Damage	+265%	1.5E+31
117	Heroes' Health	+270%	3.1E+31
118	Heroes' Armor	+160%	5.5E+31
119	Gold Earnings	+190%	9.9E+31
120	Heroes' Damage	+25%	3E+32
121	Heroes' Armor	+92%	4.5E+32
122	Guardian Damage	+36%	5.2E+32
123	Gold Earnings	+105%	7E+32
124	Heroes' Health	+35%	9.1E+32
125	Guardian Damage	+175%	2.5E+34
126	Gold Earnings	+180%	4.5E+34
127	Heroes' Armor	+222%	9E+34
128	Heroes' Damage	+200%	1.4E+35
129	Heroes' Health	+195%	2.1E+35
130	Heroes' Damage	+80%	3.5E+35
131	Heroes' Armor	+73%	5.55E+35
132	Guardian Damage	+28%	6E+35
133	Heroes' Health	+155%	7E+35
134	Gold Earnings	+140%	8E+35
135	Heroes' Damage	+300%	4E+36
136	Guardian Damage	+265%	1.5E+37
137	Heroes' Health	+270%	3.1E+37
138	Heroes' Armor	+160%	5.5E+37
139	Gold Earnings	+190%	9.9E+37
140	Heroes' Damage	+66%	2.5E+38
141	Gold Earnings	+110%	3.33E+38
142	Heroes' Armor	+55%	4.8E+38
143	Heroes' Health	+69%	5.6E+38
144	Guardian Damage	+81%	7.7E+38
145	Heroes' Damage	+25%	1.5E+40
146	Heroes' Armor	+92%	3E+40
147	Guardian Damage	+36%	7E+40
148	Gold Earnings	+105%	9E+40
149	Heroes' Health	+35%	2.5E+41
150	Heroes' Damage	+80%	3.5E+41
151	Heroes' Armor	+73%	5.55E+41
152	Guardian Damage	+28%	6E+41
153	Heroes' Health	+155%	7E+41
154	Gold Earnings	+140%	8E+41
155	Guardian Damage	+175%	2.5E+43
156	Gold Earnings	+180%	4.5E+43
157	Heroes' Armor	+222%	9E+43
158	Heroes' Damage	+200%	1.4E+44
159	Heroes' Health	+195%	2.1E+44
160	Heroes' Damage	+66%	2.5E+44
161	Gold Earnings	+110%	3.33E+44
162	Heroes' Armor	+55%	4.8E+44
163	Heroes' Health	+69%	5.6E+44
164	Guardian Damage	+81%	7.7E+44
165	Heroes' Damage	+300%	4E+45
166	Guardian Damage	+265%	1.5E+46
167	Heroes' Health	+270%	3.1E+46
168	Heroes' Armor	+160%	5.5E+46
169	Gold Earnings	+190%	9.9E+46
170	Heroes' Damage	+25%	3E+47
171	Heroes' Armor	+92%	4.5E+47
172	Guardian Damage	+36%	5.2E+47
173	Gold Earnings	+105%	7E+47
174	Heroes' Health	+35%	9.1E+47
175	Heroes' Damage	+80%	1E+49
176	Heroes' Armor	+73%	2.5E+49
177	Guardian Damage	+28%	3.8E+49
178	Heroes' Health	+155%	7E+49
179	Gold Earnings	+140%	8.2E+49
180	Guardian Damage	+175%	3E+50
181	Gold Earnings	+180%	4.5E+50
182	Heroes' Armor	+222%	8E+50
183	Heroes' Damage	+200%	8.5E+50
184	Heroes' Health	+195%	9.9E+50
185	Heroes' Damage	+66%	2.5E+52
186	Gold Earnings	+110%	3.3E+52
187	Heroes' Armor	+55%	6E+52
188	Heroes' Health	+69%	9.9E+52
189	Guardian Damage	+81%	1.6E+53
190	Heroes' Damage	+300%	2E+53
191	Guardian Damage	+265%	4.4E+53
192	Heroes' Health	+270%	6.5E+53
193	Heroes' Armor	+160%	7.8E+53
194	Gold Earnings	+190%	8.88E+53
195	Heroes' Damage	+25%	1.9E+55
196	Heroes' Armor	+92%	3.1E+55
197	Guardian Damage	+36%	4.9E+55
198	Gold Earnings	+105%	7E+55
199	Heroes' Health	+35%	1.6E+56
200	Heroes' Damage	+80%	2.4E+56

201-300	Name	Bonus	Cost
201	Heroes' Armor	+73%	4.5E+56
202	Guardian Damage	+28%	6.2E+56
203	Heroes' Health	+155%	7.7E+56
204	Gold Earnings	+140%	8.15E+56
205	Guardian Damage	+175%	2.5E+58
206	Gold Earnings	+180%	4.5E+58
207	Heroes' Armor	+222%	8.8E+58
208	Heroes' Damage	+200%	1.44E+59
209	Heroes' Health	+195%	2.18E+59
210	Heroes' Damage	+66%	2.91E+59
211	Gold Earnings	+110%	3.68E+59
212	Heroes' Armor	+55%	4.8E+59
213	Heroes' Health	+69%	5.2E+59
214	Guardian Damage	+81%	7.4E+59
215	Heroes' Damage	+300%	4.2E+60
216	Guardian Damage	+265%	1.7E+61
217	Heroes' Health	+270%	3.2E+61
218	Heroes' Armor	+160%	5.4E+61
219	Gold Earnings	+190%	9.7E+61
220	Heroes' Damage	+25%	3.1E+62
221	Heroes' Armor	+92%	4.9E+62
222	Guardian Damage	+36%	5.4E+62
223	Gold Earnings	+105%	7.9E+62
224	Heroes' Health	+35%	9.3E+62
225	Heroes' Damage	+80%	1.52E+64
226	Heroes' Armor	+73%	2.4E+64
227	Guardian Damage	+28%	4.2E+64
228	Heroes' Health	+155%	5.8E+64
229	Gold Earnings	+140%	8E+64
230	Guardian Damage	+175%	2.6E+65
231	Gold Earnings	+180%	3.28E+65
232	Heroes' Armor	+222%	6.99E+65
233	Heroes' Damage	+200%	7.3E+65
234	Heroes' Health	+195%	8.47E+65
235	Heroes' Damage	+66%	9E+66
236	Gold Earnings	+110%	1.5E+67
237	Heroes' Armor	+55%	3.8E+67
238	Heroes' Health	+69%	4.4E+67
239	Guardian Damage	+81%	7.7E+67
240	Heroes' Damage	+300%	1.51E+68
241	Guardian Damage	+265%	2.49E+68
242	Heroes' Health	+270%	4.22E+68
243	Heroes' Armor	+160%	6.55E+68
244	Gold Earnings	+190%	8.72E+68
245	Heroes' Damage	+25%	3.1E+70
246	Heroes' Armor	+92%	4.5E+70
247	Guardian Damage	+36%	7.8E+70
248	Gold Earnings	+105%	8.9E+70
249	Heroes' Health	+35%	3E+71
250	Heroes' Damage	+80%	3.5E+71
251	Heroes' Armor	+73%	5.13E+71
252	Guardian Damage	+28%	6.8E+71
253	Heroes' Health	+155%	7.9E+71
254	Gold Earnings	+140%	8.4E+71
255	Guardian Damage	+175%	2.2E+73
256	Gold Earnings	+180%	4.3E+73
257	Heroes' Armor	+222%	9.8E+73
258	Heroes' Damage	+200%	1.42E+74
259	Heroes' Health	+195%	2.14E+74
260	Heroes' Damage	+66%	2.71E+74
261	Gold Earnings	+110%	3.91E+74
262	Heroes' Armor	+55%	4.84E+74
263	Heroes' Health	+69%	5.62E+74
264	Guardian Damage	+81%	7.77E+74
265	Heroes' Damage	+300%	4E+75
266	Guardian Damage	+265%	1.5E+76
267	Heroes' Health	+270%	3.1E+76
268	Heroes' Armor	+160%	5.5E+76
269	Gold Earnings	+190%	9.9E+76
270	Heroes' Damage	+275%	3E+77
271	Heroes' Armor	+284%	4.5E+77
272	Guardian Damage	+172%	5.2E+77
273	Gold Earnings	+105%	7E+77
274	Heroes' Health	+35%	9.1E+77
275	Heroes' Damage	+80%	9E+78
276	Heroes' Armor	+73%	1.6E+79
277	Guardian Damage	+28%	3.1E+79
278	Heroes' Health	+155%	4.8E+79
279	Gold Earnings	+140%	8E+79
280	Guardian Damage	+175%	5.7E+80
281	Gold Earnings	+180%	6.1E+80
282	Heroes' Armor	+222%	7.9E+80
283	Heroes' Damage	+200%	8.81E+80
284	Heroes' Health	+195%	9.1E+80
285	Heroes' Damage	+66%	2.5E+82
286	Gold Earnings	+110%	3.3E+82
287	Heroes' Armor	+55%	4E+82
288	Heroes' Health	+69%	5.6E+82
289	Guardian Damage	+81%	7.7E+82
290	Heroes' Damage	+300%	3.1E+83
291	Guardian Damage	+265%	4.8E+83
292	Heroes' Health	+270%	5.32E+83
293	Heroes' Armor	+160%	8.8E+83
294	Gold Earnings	+190%	9.91E+83
295	Heroes' Damage	+25%	1E+85
296	Heroes' Armor	+92%	1.5E+85
297	Guardian Damage	+36%	5.2E+85
298	Gold Earnings	+105%	7.6E+85
299	Heroes' Health	+35%	1.4E+86
300	Heroes' Damage	+80%	2.5E+86

301-400	Name	Bonus	Cost
301	Heroes' Armor	+73%	5.35E+86
302	Guardian Damage	+156%	6.39E+86
303	Heroes' Health	+155%	7.32E+86
304	Gold Earnings	+140%	8.2E+86
305	Guardian Damage	+175%	2.5E+88
306	Gold Earnings	+180%	4.5E+88
307	Heroes' Armor	+222%	9E+88
308	Heroes' Damage	+200%	1.4E+89
309	Heroes' Health	+195%	2.1E+89
310	Heroes' Damage	+66%	2.5E+89
311	Gold Earnings	+110%	3.33E+89
312	Heroes' Armor	+365%	4.8E+89
313	Heroes' Health	+69%	5.6E+89
314	Guardian Damage	+81%	7.7E+89
315	Heroes' Damage	+300%	4E+90
316	Guardian Damage	+265%	1.5E+91
317	Heroes' Health	+270%	3.1E+91
318	Heroes' Armor	+160%	5.5E+91
319	Gold Earnings	+190%	9.9E+91
320	Heroes' Damage	+275%	3E+92
321	Heroes' Armor	+92%	4.5E+92
322	Guardian Damage	+36%	5.2E+92
323	Gold Earnings	+105%	7E+92
324	Heroes' Health	+35%	9.1E+92
325	Heroes' Damage	+80%	1.52E+94
326	Heroes' Armor	+73%	2.4E+94
327	Guardian Damage	+28%	4.2E+94
328	Heroes' Health	+155%	5.8E+94
329	Gold Earnings	+140%	8E+94
330	Guardian Damage	+175%	2.6E+95
331	Gold Earnings	+180%	3.28E+95
332	Heroes' Armor	+222%	6.99E+95
333	Heroes' Damage	+200%	7.3E+95
334	Heroes' Health	+195%	8.47E+95
335	Heroes' Damage	+66%	9E+96
336	Gold Earnings	+110%	1.5E+97
337	Heroes' Armor	+55%	3.8E+97
338	Heroes' Health	+69%	4.4E+97
339	Guardian Damage	+81%	7.7E+97
340	Heroes' Damage	+300%	1.51E+98
341	Guardian Damage	+265%	2.49E+98
342	Heroes' Health	+270%	4.22E+98
343	Heroes' Armor	+160%	6.55E+98
344	Gold Earnings	+190%	8.72E+98
345	Heroes' Damage	+25%	3.1E+100
346	Heroes' Armor	+92%	4.5E+100
347	Guardian Damage	+36%	7.8E+100
348	Gold Earnings	+105%	8.9E+100
349	Heroes' Health	+35%	3E+101
350	Heroes' Damage	+80%	3.5E+101
351	Heroes' Armor	+73%	5.13E+101
352	Guardian Damage	+28%	6.8E+101
353	Heroes' Health	+155%	7.9E+101
354	Gold Earnings	+140%	8.4E+101
355	Guardian Damage	+175%	2.2E+103
356	Gold Earnings	+180%	4.3E+103
357	Heroes' Armor	+222%	9.8E+103
358	Heroes' Damage	+200%	1.42E+104
359	Heroes' Health	+195%	2.14E+104
360	Heroes' Damage	+232%	2.71E+104
361	Gold Earnings	+110%	3.91E+104
362	Heroes' Armor	+210%	4.84E+104
363	Heroes' Health	+69%	5.62E+104
364	Guardian Damage	+443%	7.77E+104
365	Heroes' Damage	+300%	4E+105
366	Guardian Damage	+265%	1.5E+106
367	Heroes' Health	+270%	3.1E+106
368	Heroes' Armor	+160%	5.5E+106
369	Gold Earnings	+190%	9.9E+106
370	Heroes' Damage	+150%	3E+107
371	Heroes' Armor	+476%	4.5E+107
372	Guardian Damage	+308%	5.2E+107
373	Gold Earnings	+105%	7E+107
374	Heroes' Health	+35%	9.1E+107
375	Heroes' Damage	+80%	9E+108
376	Heroes' Armor	+73%	1.6E+109
377	Guardian Damage	+28%	3.1E+109
378	Heroes' Health	+155%	4.8E+109
379	Gold Earnings	+140%	8E+109
380	Guardian Damage	+412%	5.7E+110
381	Gold Earnings	+180%	6.1E+110
382	Heroes' Armor	+222%	7.9E+110
383	Heroes' Damage	+200%	8.81E+110
384	Heroes' Health	+195%	9.1E+110
385	Heroes' Damage	+398%	2.5E+112
386	Gold Earnings	+110%	3.3E+112
387	Heroes' Armor	+365%	4E+112
388	Heroes' Health	+69%	5.6E+112
389	Guardian Damage	+81%	7.7E+112
390	Heroes' Damage	+300%	3.1E+113
391	Guardian Damage	+580%	4.8E+113
392	Heroes' Health	+270%	5.32E+113
393	Heroes' Armor	+160%	8.8E+113
394	Gold Earnings	+190%	9.91E+113
395	Heroes' Damage	+150%	1E+115
396	Heroes' Armor	+92%	1.5E+115
397	Guardian Damage	+36%	5.2E+115
398	Gold Earnings	+105%	7.6E+115
399	Heroes' Health	+35%	1.4E+116
400	Heroes' Damage	+80%	2.5E+116

401-500	Name	Bonus	Cost
401	Heroes' Armor	+246%	5.35E+116
402	Guardian Damage	+412%	6.39E+116
403	Heroes' Health	+155%	7.32E+116
404	Gold Earnings	+140%	8.2E+116
405	Guardian Damage	+175%	2.5E+118
406	Gold Earnings	+180%	4.5E+118
407	Heroes' Armor	+222%	9E+118
408	Heroes' Damage	+200%	1.4E+119
409	Heroes' Health	+195%	2.1E+119
410	Heroes' Damage	+66%	2.5E+119
411	Gold Earnings	+110%	3.33E+119
412	Heroes' Armor	+55%	4.8E+119
413	Heroes' Health	+69%	5.6E+119
414	Guardian Damage	+81%	7.7E+119
415	Heroes' Damage	+300%	4E+120
416	Guardian Damage	+265%	1.5E+121
417	Heroes' Health	+270%	3.1E+121
418	Heroes' Armor	+160%	5.5E+121
419	Gold Earnings	+190%	9.9E+121
420	Heroes' Damage	+25%	3E+122
421	Heroes' Armor	+92%	4.5E+122
422	Guardian Damage	+36%	5.2E+122
423	Gold Earnings	+105%	7E+122
424	Heroes' Health	+35%	9.1E+122
425	Heroes' Damage	+80%	1.52E+124
426	Heroes' Armor	+73%	2.4E+124
427	Guardian Damage	+28%	4.2E+124
428	Heroes' Health	+155%	5.8E+124
429	Gold Earnings	+140%	8E+124
430	Guardian Damage	+175%	2.6E+125
431	Gold Earnings	+180%	3.28E+125
432	Heroes' Armor	+222%	6.99E+125
433	Heroes' Damage	+200%	7.3E+125
434	Heroes' Health	+195%	8.47E+125
435	Heroes' Damage	+66%	9E+126
436	Gold Earnings	+110%	1.5E+127
437	Heroes' Armor	+55%	3.8E+127
438	Heroes' Health	+69%	4.4E+127
439	Guardian Damage	+81%	7.7E+127
440	Heroes' Damage	+300%	1.51E+128
441	Guardian Damage	+265%	2.49E+128
442	Heroes' Health	+270%	4.22E+128
443	Heroes' Armor	+160%	6.55E+128
444	Gold Earnings	+190%	8.72E+128
445	Heroes' Damage	+25%	3.1E+130
446	Heroes' Armor	+92%	4.5E+130
447	Guardian Damage	+36%	7.8E+130
448	Gold Earnings	+105%	8.9E+130
449	Heroes' Health	+35%	3E+131
450	Heroes' Damage	+80%	3.5E+131
451	Heroes' Armor	+73%	5.13E+131
452	Guardian Damage	+75%	6.8E+131
453	Heroes' Health	+155%	7.9E+131
454	Gold Earnings	+140%	8.4E+131
455	Guardian Damage	+175%	2.2E+133
456	Gold Earnings	+180%	4.3E+133
457	Heroes' Armor	+222%	9.8E+133
458	Heroes' Damage	+200%	1.42E+134
459	Heroes' Health	+195%	2.14E+134
460	Heroes' Damage	+66%	2.71E+134
461	Gold Earnings	+110%	3.91E+134
462	Heroes' Armor	+55%	4.84E+134
463	Heroes' Health	+69%	5.62E+134
464	Guardian Damage	+81%	7.77E+134
465	Heroes' Damage	+300%	4E+135
466	Guardian Damage	+265%	1.5E+136
467	Heroes' Health	+270%	3.1E+136
468	Heroes' Armor	+160%	5.5E+136
469	Gold Earnings	+190%	9.9E+136
470	Heroes' Damage	+150%	3E+137
471	Heroes' Armor	+92%	4.5E+137
472	Guardian Damage	+444%	5.2E+137
473	Gold Earnings	+105%	7E+137
474	Heroes' Health	+35%	9.1E+137
475	Heroes' Damage	+80%	9E+138
476	Heroes' Armor	+246%	1.6E+139
477	Guardian Damage	+28%	3.1E+139
478	Heroes' Health	+155%	4.8E+139
479	Gold Earnings	+140%	8E+139
480	Guardian Damage	+175%	5.7E+140
481	Gold Earnings	+180%	6.1E+140
482	Heroes' Armor	+222%	7.9E+140
483	Heroes' Damage	+200%	8.81E+140
484	Heroes' Health	+195%	9.1E+140
485	Heroes' Damage	+66%	2.5E+142
486	Gold Earnings	+110%	3.3E+142
487	Heroes' Armor	+55%	4E+142
488	Heroes' Health	+69%	5.6E+142
489	Guardian Damage	+81%	7.7E+142
490	Heroes' Damage	+300%	3.1E+143
491	Guardian Damage	+265%	4.8E+143
492	Heroes' Health	+270%	5.32E+143
493	Heroes' Armor	+160%	8.8E+143
494	Gold Earnings	+190%	9.91E+143
495	Heroes' Damage	+25%	1E+145
496	Heroes' Armor	+92%	1.5E+145
497	Guardian Damage	+36%	5.2E+145
498	Gold Earnings	+105%	7.6E+145
499	Heroes' Health	+35%	1.4E+146
500	Heroes' Damage	+80%	2.5E+146

501-600	Name	Bonus	Cost
501	Heroes' Armor	+73%	5.35E+146
502	Guardian Damage	+28%	6.39E+146
503	Heroes' Health	+155%	7.32E+146
504	Gold Earnings	+140%	8.2E+146
505	Guardian Damage	+175%	2.5E+148
506	Gold Earnings	+180%	4.5E+148
507	Heroes' Armor	+222%	9E+148
508	Heroes' Damage	+200%	1.4E+149
509	Heroes' Health	+195%	2.1E+149
510	Heroes' Damage	+66%	2.5E+149
511	Gold Earnings	+110%	3.33E+149
512	Heroes' Armor	+55%	4.8E+149
513	Heroes' Health	+69%	5.6E+149
514	Guardian Damage	+81%	7.7E+149
515	Heroes' Damage	+300%	4E+150
516	Guardian Damage	+265%	1.5E+151
517	Heroes' Health	+270%	3.1E+151
518	Heroes' Armor	+160%	5.5E+151
519	Gold Earnings	+190%	9.9E+151
520	Heroes' Damage	+25%	3E+152
521	Heroes' Armor	+92%	4.5E+152
522	Guardian Damage	+136%	5.2E+152
523	Gold Earnings	+105%	7E+152
524	Heroes' Health	+35%	9.1E+152
525	Heroes' Damage	+80%	1.52E+154
526	Heroes' Armor	+73%	2.4E+154
527	Guardian Damage	+28%	4.2E+154
528	Heroes' Health	+155%	5.8E+154
529	Gold Earnings	+140%	8E+154
530	Guardian Damage	+175%	2.6E+155
531	Gold Earnings	+180%	3.28E+155
532	Heroes' Armor	+222%	6.99E+155
533	Heroes' Damage	+200%	7.3E+155
534	Heroes' Health	+195%	8.47E+155
535	Heroes' Damage	+66%	9E+156
536	Gold Earnings	+110%	1.5E+157
537	Heroes' Armor	+55%	3.8E+157
538	Heroes' Health	+69%	4.4E+157
539	Guardian Damage	+154%	7.7E+157
540	Heroes' Damage	+300%	1.51E+158
541	Guardian Damage	+265%	2.49E+158
542	Heroes' Health	+270%	4.22E+158
543	Heroes' Armor	+160%	6.55E+158
544	Gold Earnings	+190%	8.72E+158
545	Heroes' Damage	+25%	3.1E+160
546	Heroes' Armor	+92%	4.5E+160
547	Guardian Damage	+36%	7.8E+160
548	Gold Earnings	+105%	8.9E+160
549	Heroes' Health	+35%	3E+161
550	Heroes' Damage	+80%	3.5E+161
551	Heroes' Armor	+73%	5.13E+161
552	Guardian Damage	+28%	6.8E+161
553	Heroes' Health	+155%	7.9E+161
554	Gold Earnings	+140%	8.4E+161
555	Guardian Damage	+175%	2.2E+163
556	Gold Earnings	+180%	4.3E+163
557	Heroes' Armor	+222%	9.8E+163
558	Heroes' Damage	+200%	1.42E+164
559	Heroes' Health	+195%	2.14E+164
560	Heroes' Damage	+232%	2.71E+164
561	Gold Earnings	+110%	3.91E+164
562	Heroes' Armor	+365%	4.84E+164
563	Heroes' Health	+69%	5.62E+164
564	Guardian Damage	+262%	7.77E+164
565	Heroes' Damage	+300%	4E+165
566	Guardian Damage	+265%	1.5E+166
567	Heroes' Health	+270%	3.1E+166
568	Heroes' Armor	+160%	5.5E+166
569	Gold Earnings	+190%	9.9E+166
570	Heroes' Damage	+150%	3E+167
571	Heroes' Armor	+210%	4.5E+167
572	Guardian Damage	+336%	5.2E+167
573	Gold Earnings	+105%	7E+167
574	Heroes' Health	+35%	9.1E+167
575	Heroes' Damage	+80%	9E+168
576	Heroes' Armor	+73%	1.6E+169
577	Guardian Damage	+128%	3.1E+169
578	Heroes' Health	+155%	4.8E+169
579	Gold Earnings	+140%	8E+169
580	Guardian Damage	+175%	5.7E+170
581	Gold Earnings	+180%	6.1E+170
582	Heroes' Armor	+222%	7.9E+170
583	Heroes' Damage	+200%	8.81E+170
584	Heroes' Health	+195%	9.1E+170
585	Heroes' Damage	+66%	2.5E+172
586	Gold Earnings	+110%	3.3E+172
587	Heroes' Armor	+55%	4E+172
588	Heroes' Health	+69%	5.6E+172
589	Guardian Damage	+181%	7.7E+172
590	Heroes' Damage	+300%	3.1E+173
591	Guardian Damage	+265%	4.8E+173
592	Heroes' Health	+270%	5.32E+173
593	Heroes' Armor	+160%	8.8E+173
594	Gold Earnings	+190%	9.91E+173
595	Heroes' Damage	+206%	1E+175
596	Heroes' Armor	+92%	1.5E+175
597	Guardian Damage	+36%	5.2E+175
598	Gold Earnings	+105%	7.6E+175
599	Heroes' Health	+35%	1.4E+176
600	Heroes' Damage	+80%	2.5E+176

601-700	Name	Bonus	Cost
601	Heroes' Armor	+396%	5.35E+176
602	Guardian Damage	+228%	6.39E+176
603	Heroes' Health	+155%	7.32E+176
604	Gold Earnings	+140%	8.2E+176
605	Guardian Damage	+175%	2.5E+178
606	Gold Earnings	+180%	4.5E+178
607	Heroes' Armor	+222%	9E+178
608	Heroes' Damage	+200%	1.4E+179
609	Heroes' Health	+195%	2.1E+179
610	Heroes' Damage	+66%	2.5E+179
611	Gold Earnings	+110%	3.33E+179
612	Heroes' Armor	+55%	4.8E+179
613	Heroes' Health	+69%	5.6E+179
614	Guardian Damage	+81%	7.7E+179
615	Heroes' Damage	+300%	4E+180
616	Guardian Damage	+265%	1.5E+181
617	Heroes' Health	+270%	3.1E+181
618	Heroes' Armor	+160%	5.5E+181
619	Gold Earnings	+190%	9.9E+181
620	Heroes' Damage	+25%	3E+182
621	Heroes' Armor	+93%	4.5E+182
622	Guardian Damage	+36%	5.2E+182
623	Gold Earnings	+105%	7E+182
624	Heroes' Health	+35%	9.1E+182
625	Heroes' Damage	+80%	1.52E+184
626	Heroes' Armor	+73%	2.4E+184
627	Guardian Damage	+128%	4.2E+184
628	Heroes' Health	+155%	5.8E+184
629	Gold Earnings	+140%	8E+184
630	Guardian Damage	+175%	2.6E+185
631	Gold Earnings	+180%	3.28E+185
632	Heroes' Armor	+222%	6.99E+185
633	Heroes' Damage	+200%	7.3E+185
634	Heroes' Health	+195%	8.47E+185
635	Heroes' Damage	+66%	9E+186
636	Gold Earnings	+110%	1.5E+187
637	Heroes' Armor	+55%	3.8E+187
638	Heroes' Health	+69%	4.4E+187
639	Guardian Damage	+181%	7.7E+187
640	Heroes' Damage	+300%	1.51E+188
641	Guardian Damage	+265%	2.49E+188
642	Heroes' Health	+270%	4.22E+188
643	Heroes' Armor	+160%	6.55E+188
644	Gold Earnings	+190%	8.72E+188
645	Heroes' Damage	+25%	3.1E+190
646	Heroes' Armor	+92%	4.5E+190
647	Guardian Damage	+136%	7.8E+190
648	Gold Earnings	+105%	8.9E+190
649	Heroes' Health	+35%	3E+191
650	Heroes' Damage	+80%	3.5E+191
651	Heroes' Armor	+73%	5.13E+191
652	Guardian Damage	+28%	6.8E+191
653	Heroes' Health	+155%	7.9E+191
654	Gold Earnings	+140%	8.4E+191
655	Guardian Damage	+175%	2.2E+193
656	Gold Earnings	+180%	4.3E+193
657	Heroes' Armor	+222%	9.8E+193
658	Heroes' Damage	+200%	1.42E+194
659	Heroes' Health	+195%	2.14E+194
660	Heroes' Damage	+66%	2.71E+194
661	Gold Earnings	+110%	3.91E+194
662	Heroes' Armor	+55%	4.84E+194
663	Heroes' Health	+69%	5.62E+194
664	Guardian Damage	+81%	7.77E+194
665	Heroes' Damage	+300%	4E+195
666	Guardian Damage	+265%	1.5E+196
667	Heroes' Health	+270%	3.1E+196
668	Heroes' Armor	+160%	5.5E+196
669	Gold Earnings	+190%	9.9E+196
670	Heroes' Damage	+25%	3E+197
671	Heroes' Armor	+92%	4.5E+197
672	Guardian Damage	+136%	5.2E+197
673	Gold Earnings	+105%	7E+197
674	Heroes' Health	+35%	9.1E+197
675	Heroes' Damage	+80%	9E+198
676	Heroes' Armor	+73%	1.6E+199
677	Guardian Damage	+28%	3.1E+199
678	Heroes' Health	+155%	4.8E+199
679	Gold Earnings	+140%	8E+199
680	Guardian Damage	+175%	5.7E+200
681	Gold Earnings	+180%	6.1E+200
682	Heroes' Armor	+222%	7.9E+200
683	Heroes' Damage	+200%	8.81E+200
684	Heroes' Health	+195%	9.1E+200
685	Heroes' Damage	+66%	2.5E+202
686	Gold Earnings	+110%	3.3E+202
687	Heroes' Armor	+55%	4E+202
688	Heroes' Health	+69%	5.6E+202
689	Guardian Damage	+181%	7.7E+202
690	Heroes' Damage	+300%	3.1E+203
691	Guardian Damage	+265%	4.8E+203
692	Heroes' Health	+270%	5.32E+203
693	Heroes' Armor	+160%	8.8E+203
694	Gold Earnings	+190%	9.91E+203
695	Heroes' Damage	+25%	1E+205
696	Heroes' Armor	+92%	1.5E+205
697	Guardian Damage	+136%	5.2E+205
698	Gold Earnings	+105%	7.6E+205
699	Heroes' Health	+35%	1.4E+206
700	Heroes' Damage	+80%	2.5E+206

701-724	Name	Bonus	Cost
701	Heroes' Armor	+73%	5.35E+206
702	Guardian Damage	+128%	6.39E+206
703	Heroes' Health	+155%	7.32E+206
704	Gold Earnings	+140%	8.2E+206
705	Guardian Damage	+175%	2.5E+208
706	Gold Earnings	+180%	4.5E+208
707	Heroes' Armor	+222%	9E+208
708	Heroes' Damage	+200%	1.4E+209
709	Heroes' Health	+195%	2.1E+209
710	Heroes' Damage	+66%	2.5E+209
711	Gold Earnings	+110%	3.33E+209
712	Heroes' Armor	+55%	4.8E+209
713	Heroes' Health	+69%	5.6E+209
714	Guardian Damage	+181%	7.7E+209
715	Heroes' Damage	+300%	4E+210
716	Guardian Damage	+265%	1.5E+211
717	Heroes' Health	+270%	3.1E+211
718	Heroes' Armor	+160%	5.5E+211
719	Gold Earnings	+190%	9.9E+211
720	Heroes' Damage	+25%	3E+212
721	Heroes' Armor	+92%	4.5E+212
722	Guardian Damage	+36%	5.2E+212
723	Gold Earnings	+105%	7E+212
724	Heroes' Health	+35%	9.1E+212

There are more upgrades after number 724, but these happen in a loop. So it starts at the first upgrade, continues till the last one, then starts at the beginning again while the initial price has gone up by e9. The list of these upgrades goes like this:

724+	General Form	Name	Bonus	Cost
1	695+30N	Heroes' Damage	+20%	2.24E+213
2	696+30N	Heroes' Armor	+25%	7.36E+213
3	697+30N	Guardian Damage	+275%	1.56E+214
4	698+30N	Gold Earnings	+100%	3.69E+214
5	699+30N	Heroes' Health	+140%	7.86E+214
6	700+30N	Heroes' Damage	+400%	2.25E+215
7	701+30N	Heroes' Armor	+380%	3.79E+215
8	702+30N	Guardian Damage	+60%	5.49E+215
9	703+30N	Heroes' Health	+150%	7.69E+215
10	704+30N	Gold Earnings	+200%	8.1E+215
11	705+30N	Guardian Damage	+60%	3E+216
12	706+30N	Gold Earnings	+20%	6.49E+216
13	707+30N	Heroes' Armor	+200%	1.56E+217
14	708+30N	Heroes' Damage	+100%	3.56E+217
15	709+30N	Heroes' Health	+275%	7.09E+217
16	710+30N	Heroes' Damage	+200%	1.16E+218
17	711+30N	Gold Earnings	+400%	2.3E+218
18	712+30N	Heroes' Armor	+100%	4.5E+218
19	713+30N	Heroes' Health	+60%	6.5E+218
20	714+30N	Guardian Damage	+275%	9.36E+218
21	715+30N	Heroes' Damage	+50%	4.56E+219
22	716+30N	Guardian Damage	+60%	6.5E+219
23	717+30N	Heroes' Health	+20%	1.66E+220
24	718+30N	Heroes' Armor	+100%	2.6E+220
25	719+30N	Gold Earnings	+25%	6.96E+220
26	720+30N	Heroes' Damage	+300%	1.59E+221
27	721+30N	Heroes' Armor	+200%	2.67E+221
28	722+30N	Guardian Damage	+275%	4.36E+221
29	723+30N	Gold Earnings	+380%	6.78E+221
30	724+30N	Heroes' Health	+400%	8.39E+221