Mainframe Defenders: Meltdown - Prologue
Mainframe Defenders: Meltdown - Prologue is a free version of the turn-based tactical game Mainframe Defenders with a focus on interesting items and customization. Combine upgrades and collected loot to protect the Stargazer complex.
- Release Date:6/3/2021
- Franchise:Synthetic Domain
- Developer:Synthetic Domain
- Publisher:Synthetic Domain
- Last Updated:3/14/2025
- Steam App Id:1597790
Steam Charts, Stats, and Live Player Count
At the moment, Mainframe Defenders: Meltdown - Prologue has 1 concurrent player online and in-game. This is 67% lower than its previous all-time peak of 3 players achieved on 11/21/2023.

Review History Chart
Track historical review trends and overall ratings for Mainframe Defenders: Meltdown - Prologue. It has received a total of 35 reviews on the Steam store and achieved a Player Score of 81 (Positive).
Community Hub Members & Followers Chart
Explore the cumulative breakdown of Steam community hub members for Mainframe Defenders: Meltdown - Prologue and its growth over time. It currently has 279 followers on its community page.
About Mainframe Defenders: Meltdown - Prologue
Mainframe Defenders: Meltdown - Prologue is an Indie, Strategy, and Free to Play game developed by Synthetic Domain. On 6/3/2021, it was released on the Steam Store by Synthetic Domain.
Players have rated Mainframe Defenders: Meltdown - Prologue as "Positive" out of 35 total reviews on the Steam Store. These are split between 34 positive reviews and 1 negative reviews — an overall 97% positive review rating.
It can be played and ran on both Windows and Linux systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
It also supports 12 languanges in-game including English, French, Italian, German, and Spanish (Spain). Each language comes with varying levels of support for the in-game interface, audio, and fully translated subtitles.
According to Steam’s category system, Mainframe Defenders: Meltdown - Prologue supports the following features:
- Single-player
From the Steam community, Mainframe Defenders: Meltdown - Prologue has been tagged with the following user tags:
- Futuristic
- Roguelike
- Minimalist
- Loot
- Atmospheric
- JRPG
- Tactical
- 1990's
- Pixel Graphics
- Grid-Based Movement
- 1980s
- Mechs
- Turn-Based Tactics
- Top-Down
- Strategy
- Turn-Based Strategy
- Turn-Based Combat
- Robots
- Singleplayer
- 2D
Media & Sceenshots
Watch the featured video for Mainframe Defenders: Meltdown - Prologue and see the latest screenshots from the Steam Store.
Supported Languages
Mainframe Defenders: Meltdown - Prologue is available in 12 different languages with varying levels of support for the in-game interface, audio, and fully translated subtitles.
Name | Interface | Audio | Subtitles |
---|---|---|---|
English | Yes | No | Yes |
French | Yes | No | Yes |
Italian | Yes | No | Yes |
German | Yes | No | Yes |
Spanish (Spain) | Yes | No | Yes |
Hungarian | Yes | No | Yes |
Chinese (Simplified) | Yes | No | Yes |
Korean | Yes | No | Yes |
Polish | Yes | No | Yes |
Portuguese | Yes | No | Yes |
Frequently Asked Questions
Soures & References
Steambase has best-in-class data powered directly by Steam, our data partners, and in-house experts. Data is enriched, cleansed, verified, and updated in realtime to ensure we surface the most up-to-date information. Learn more about the Steambase approach to data collection.
Mainframe Defenders: Meltdown - Prologue data has been sourced from:
- Valve Corporation. (2025, March 14). Mainframe Defenders: Meltdown - Prologue on Steam. Steam Store. https://store.steampowered.com/app/1597790
- Valve Corporation. (2025, March 14). Mainframe Defenders: Meltdown - Prologue. Steam Community Hub. https://steamcommunity.com/app/1597790
- Synthetic Domain. (2023, July 15). Mainframe Defenders: Meltdown - Prologue. Mainframe Defenders: Meltdown - Prologue. https://www.syntheticdomain.com