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Mainframe Defenders

Also known as Mainframe Defenders, mainframe defenders, mainframe-defenders

MAINFRAME DEFENDERS - Turn-based tactics centered around gear and unit customization. It offers simple combat, high replayability, and tons of loot. Items don't just provide stats boost, but also offer distinct mechanics that can be combined into powerful builds.

Last update
10 Jun 2026
Players now
3

Latest update

Update history

Browse past updates and patch notes for this game.

20 updates

Gallery

In-game media

Achievements

Community progression

Top picks from 14 Steam achievements, sorted by player unlock rates.

  • Mainframe DefendersComplete the final mission4.4%
  • Rust BucketKill a unit with 60+ Corrosion stacks3.9%
  • EmployeeFinish the game on Easy difficulty3.5%
  • Long Term StrategyApply 5 different status effects on a single enemy3.3%
  • Middle ManagerFinish the game on Normal difficulty2.6%
  • Heat DeathKill a unit while this unit has 3 times the max heat2.5%