War competition
In the ruins of civilization, beyond fear, hunger and thirst that took possession of the survivors, everything had to be rebuilt with limited skills and only with few resources. People were fighting together against aliens but their desire for gold was too big. They turned against each other in hope for a bigger gold reserve. This result in a world war competition which involved the vast majority of the Golden Battles countries forming two opposing military alliances: The Avengers and the Postapocalyptic United Realm of Global Engagement (so called PURGE)
List of participant countries:
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| Tower level 1 | Tower level 2 | Tower level 3 | Tower level 4 | Tower level 5 | |
| Defense power: | +10% | +20% | +30% | +40% | +50% |
| Attack power: | +5% | +10% | +15% | +20% | +25% |
| Alien countdown time: | -1s | -2s | -3s | -4s | -5s |
| Drop rate bonus: | +10% | +20% | +30% | +40% | +50% |
| XP multiplier: | +20% | +40% | +60% | +80% | +100% |
| War competition points: | 1 point | 3 points | 7 points | 13 points | 20 points |