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Feed the Reactor
An incremental unfolding game about feeding fuel into a reactor. Combine elements to produce energy, unlock exotic technologies and explore a strange galaxy.
What players say
Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-25.
“took me just under 4 hours to 100% the game and 3 hours to beat it. good play and graphics and unique mechanics compared to other idle games / number go up games.”
— a player, Steam review · 4 hrs played“Another incremental game. Brain-off gameplay is exactly what I look for from the genre, this one is fine. Progression is great. You are always unlocking something new, and just when you think you have seen everything, another menu appears with even more upgrades to buy. It keeps…”
— a player, Steam review · 3 hrs played“As far as casual-clicker games go, this one is fairly disappointing. It's playable, but there's not really much here to get excited about. If I could, I'd give this a neutral recommendation. 5/10”
— a player, Steam review · 2 hrs playedPlayer activity
Monthly average concurrent players. Live data self-collected from the Steam API · history through 2026-08 via SteamCharts.
Achievement stats
Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-26.
Price tracking
US-region pricing (USD), sampled twice daily by our own tracker since 2026-09-26. Steam prices vary by region — always confirm your local price on Steam.
Regional prices at last sample, in local currency — Steam sets each region's price independently.
Cheapest → most expensive, converted to USD at ECB reference rates (2026-09-25). Relative comparison only.
Latest official news
Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.
1.05 Patch and Trading Cards are here!!
WHAT'S NEW?? 1.05 Patch Fixed a bug that prevented the resolution selector from working. Adjusted the options UI so it is not cut off on certain resolutions, such as on steam deck. Fixed the info disp
1.04 Quality-of-life and Balance Update
WHAT'S NEW IN 1.04? QUALITY-OF-LIFE Audio now mutes when the game is minimised/ not in focus. There is a new toggle in options to change this. Once Navigation is unlocked, you can now view warp progre
1.03 Small patch for save files and 'new game' bug
WHAT'S NEW? Worked on better save file handling to prevent a bug where the 'new game' button stopped working. The game will now load from a backup saved file if the saved file has been corrupted, whic
1.02 Performance and bug patch
WHAT'S NEW? PERFORMANCE Enhancements for lag when using Reproduction Helix. Improved performance during cryo-dreaming minigame. Improved Core orbiters performance with many Cores. Added limits to some
Demo update 0.92
WHAT'S NEW IN THE DEMO? Improved the Fuel boost Pump. When active it now also increases total Material by 30%. Energy is now generated when fuel is damaged, not only when it is destroyed. this should
Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-09-25.
| Genres | Casual, Simulation, Strategy |
| Player tags | Incremental · Strategy · Idler · Casual · Simulation · Auto Battler · Management · 2D · Relaxing · Multiple Endings · Horror · Pixel Graphics (Steam store community voting) |
| Features | Single-player · Steam Achievements · Custom Volume Controls · Mouse Only Option · Playable without Timed Input · Save Anytime · Touch Only Option · Steam Cloud |
| Languages | English * * |
| Achievements | 21 |
Minimum system requirements (PC)
Minimum: Requires a 64-bit processor and operating system OS: Windows 10 Processor: Intel i5 Memory: 8 GB RAM Graphics: Any graphics card. Storage: 800 MB available space