Mainframe Defenders
Developed by Synthetic Domain · Published by Synthetic Domain
At a glance
Overview
An indie, rpg, strategy game by Synthetic Domain, published by Synthetic Domain — single-player.
Steam’s own one-line description: “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.” — developer/publisher text via the Steam store page.
Reception & community
Review sentiment, ownership and peak-concurrent estimates via SteamSpy; tags are player-voted on Steam. Estimates change over time.
Features & modes
Derived from the gameplay modes and feature categories Steam lists for Mainframe Defenders.
| Feature | Supported |
|---|---|
| Single-player | Yes |
| Multiplayer | No |
| Co-op | No |
| Online co-op | No |
| PvP | No |
| Cross-platform multiplayer | No |
| Full controller support | No |
| Partial controller support | No |
| Steam Cloud saves | No |
| Steam Achievements | Yes |
System requirements (PC)
As published on the Steam store page. Requirements can change between updates.
Minimum
- Requires a 64-bit processor and operating system
- OS *: Windows 7 or later
- Processor: Intel Celeron
- Memory: 2048 MB RAM
- DirectX: Version 10
- Storage: 200 MB available space
- Additional Notes: Requires a 64-bit processor and operating system
Recommended
- Requires a 64-bit processor and operating system
- Additional Notes: Requires a 64-bit processor and operating system
Supported languages (13)
Mainframe Defenders FAQ
Answered from the official Steam listing as of June 2026. Where something hasn't been announced, we say so rather than guess.
What kind of game is Mainframe Defenders?
Steam classifies Mainframe Defenders as a Indie, RPG, Strategy game, developed by Synthetic Domain. 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.
How much does Mainframe Defenders cost?
As of June 2026, Steam lists Mainframe Defenders at $0.77. Prices and regional pricing change — check the Steam page for the current figure.
Is Mainframe Defenders single-player or multiplayer?
Steam lists these modes for Mainframe Defenders: Single-player. It lists a single-player mode.
Is Mainframe Defenders on PlayStation, Xbox, or Switch?
Our data comes from the Steam (PC) store, which lists Mainframe Defenders for Windows, Linux. Console availability isn’t in our Steam-sourced data — check the official site or the console store.
Is Mainframe Defenders out yet?
Yes — Steam lists a release date of Feb 25, 2020.
What platforms is Mainframe Defenders on?
Mainframe Defenders is listed for Windows, Linux on the Steam (PC) store. Console availability isn't covered by Steam's PC store data — check the official channels.
Is Mainframe Defenders single-player or multiplayer?
Steam lists these modes: Single-player.
How much does Mainframe Defenders cost?
Steam lists it at $0.77.
Does Mainframe Defenders have achievements?
Yes — Steam lists 14 achievements for Mainframe Defenders.
Who made Mainframe Defenders?
Mainframe Defenders is developed by Synthetic Domain and published by Synthetic Domain.
Where to get Mainframe Defenders
We don't sell games or track prices — this links to the official Steam store page.
View on Steam →Listing details from Valve's public Steam store data · official site. Not affiliated with Valve/Steam, Synthetic Domain.