Mercenary Base — Tower Defense Simulator Guide
Category: DPS
Unlock: 1,800 Robux
Detection: Hidden, Flying, Lead
Placement Limit: 3 per player
Tier Rating: C
Total Upgrade Cost: $84,000
Mercenary Base is a spawner tower that unlocks at Level 150. Rather than attacking directly, it queues up to 3 mercenary units - Rifleman, Grenadier, Riot Guard, and later Field Medic - to fight on the path, and from Level 3 it also buffs nearby towers with a Damage Buff.
Mercenary Base Stats Per Level
The table below shows all Mercenary Base Tower Defense Simulator upgrade levels and stats. Click any column header to sort. All values are sourced from the TDS Fandom wiki (checked August 3, 2026).
| Level | Upgrade Cost | Damage | Cooldown | Range | DPS |
|---|---|---|---|---|---|
| 0 | 2750 | — | — | 6 | — |
| 1 | 1350 | — | — | 8 | — |
| 2 | 2750 | — | — | 8 | — |
| 3 | 9650 | — | — | 10 | — |
| 4 | 10000 | — | — | 10 | — |
| 5 | 12500 | — | — | 10 | — |
| 6 | 45000 | — | — | 10 | — |
Note: Unit Queue 3; Damage Buff increases to 15%; Grenadier gains defense, Field Medic heal increases to 20/tick
How to Get Mercenary Base
Reach Level 150 to unlock Mercenary Base for placement, then purchase it from the Store
Alternatively, buy the 1,800 Robux gamepass to place it before reaching Level 150
Is Mercenary Base Worth It?
Provides both frontline damage (via spawned units) and a team-wide Damage Buff from Level 3+
Field Medic at Level 5+ adds sustain by healing nearby units
Air-Drop ability lets you reposition units anywhere on the path for emergency defense
Because it has no direct tower damage stat, its effectiveness depends heavily on unit pathing and positioning, which can be inconsistent on chokepoint-heavy maps
Mercenary Base Tier Rating by Mode
Best Loadouts With Mercenary Base
Works well alongside other buff towers like Commander to further empower its spawned units
Good on open maps where its units have room to engage enemies before they reach other defenses