Your Base - Protect it, once destroyed the game is lost.
- The Base is the core building of your entire base layout. When the base is destroyed, either by zombies or bosses, the game is over.
- Upgrading bases leads to an additional level buildings can upgrade too. At tier 6 and tier 9 you will receive an additional building;, lightning towers, shield towers
- Always prioritize on upgrading this base over other buildings
- Cover your with one layer of walls, in the case tha bosses or zombies break through
- The base's attack is very weak with a slow firate, meaning it can't defend itself.
- Bases change color as they are upgraded
- The Max Base Level that you can upgrade to is tier 30, but due to certain conditions and insufficient crystal mines, tier 29 is the highest tier achievable on easy mode.
| Base level | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wall | 20 | 28 | 38 | 52 | 70 | 95 | 127 | 170 | 229 | 307 | 412 | 554 | 745 | 1002 | 1351 | 1819 | 2050 |
| Transporter | 10 | 15 | 20 | 28 | 37 | 50 | 67 | 89 | 118 | 158 | 211 | 282 | 378 | 508 | 682 | 917 | 1233 |
| Crystal Mine | 2 | 4 | 7 | 9 | 12 | 16 | 21 | 27 | 35 | 46 | 60 | 79 | 103 | 136 | 180 | 239 | 319 |
| Iron Mine | 2 | 4 | 6 | 8 | 12 | 16 | 18 | 24 | 32 | 40 | 52 | 68 | 88 | 116 | 152 | 200 | 266 |
| Cannon Ball Factory | 1 | 2 | 2 | 3 | 4 | 5 | 6 | 8 | 10 | 13 | 17 | 22 | 29 | 38 | 50 | 65 | 87 |
| Cannon Tower | 2 | 4 | 6 | 8 | 11 | 14 | 18 | 23 | 30 | 39 | 50 | 65 | 85 | 112 | 148 | 195 | 259 |
| Harvester | 0 | 0 | 3 | 3 | 6 | 9 | 9 | 12 | 18 | 21 | 27 | 36 | 45 | 60 | 78 | 105 | 138 |
| Steel Factory | 0 | 0 | 1 | 1 | 2 | 3 | 3 | 4 | 6 | 7 | 9 | 12 | 15 | 20 | 26 | 35 | 46 |
| Sawmill | 0 | 0 | 1 | 1 | 2 | 3 | 3 | 4 | 6 | 7 | 9 | 12 | 15 | 20 | 26 | 35 | 46 |
| Arrow Factory | 0 | 0 | 1 | 1 | 2 | 3 | 3 | 4 | 6 | 7 | 9 | 12 | 15 | 20 | 26 | 35 | 46 |
| Arrow Tower | 0 | 0 | 3 | 4 | 7 | 9 | 12 | 16 | 21 | 27 | 36 | 46 | 60 | 79 | 104 | 137 | 181 |
| Uranium Mine | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 4 | 13 | 18 | 28 | 39 | 50 | 66 | 83 | 106 | 140 |
| Nuclear Reactor | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 4 | 5 | 6 | 8 | 11 | 14 | 18 | 23 | 30 | 40 |
| Lightning Tower | 0 | 0 | 0 | 0 | 0 | 3 | 4 | 7 | 9 | 12 | 16 | 21 | 27 | 36 | 46 | 60 | 79 |
| Shield Tower | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 3 | 5 | 7 | 9 | 12 | 15 | 19 | 25 |
Characteristics at different levels
| Level | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|
| Health | 1 000 | 1 500 | 3 500 | 7 000 | 14 000 | 28 000 | 54 000 | 100 000 | 200 000 |
| Damage | 50 | 80 | 100 | 200 | 300 | 500 | 800 | 1 000 | 2 000 |
| Upgrade | 850 | 2 000 | 7 500 | 25 000 | 75 000 | 200 000 | - | ||
| Cost | 0 | 850 | 2 850 | 10 000 | 35 000 | 110 000 | 310 000 |
Trivia
- Where you place your base greatly impacts the way zombies spawn.
- When taken statistically, the Main Base is easier to destroy than a wall. This may be due to the fact that walls can absorb attacks via shield.
- Some colors are reused in different tiers of the base.
[1] initial reference