THERMAL RUNAWAY
Released 22 October 2026 · PC · Action, Indie

A top-down roguelite inside one sealed chamber. Ten levels, one hundred waves, and upgrades that compound into something the facility was not built to contain. The run ends when you break — or when the reaction does.
Story
One room. One hundred waves. There is no map and nowhere to fall back to. Chamber 7-A is a single reinforced floor, and everything that happens to you happens on it. The only thing that changes across a run is what you have become. 100 waves across 10 levels — a full run is 35 to 50 minutes Waves are generated rather than scripted: the same rules, a different fight A run can be suspended and resumed, but never checkpointed. Death ends it The build is the game. An upgrade every three waves, an experimental Protocol every ten. Almost nothing is a flat damage increase — the numbers that matter come out of what stacks into what. 62 upgrades and 13 Protocols that combine rather than add Ricochets that split on every bounce. Lightning that conducts through frozen targets Echoes of yourself that keep firing your weapon after you have moved on It escalates on eleven axes, and health is the smallest of them. Enemy health barely triples across a hundred waves. What changes is how many arrive, how fast, from where, and how much of the floor is trying to kill you. 4 enemy archetypes, promoted to Elite and Prime ranks as the run goes on The chamber itself turns against you: the...
Gameplay
One room. One hundred waves. There is no map and nowhere to fall back to. Chamber 7-A is a single reinforced floor, and everything that happens to you happens on it. The only thing that changes across a run is what you have become. 100 waves across 10 levels — a full run is 35 to 50 minutes Waves are generated rather than scripted: the same rules, a different fight A run can be suspended and resumed, but never checkpointed. Death ends it The build is the game. An upgrade every three waves, an experimental Protocol every ten. Almost nothing is a flat damage increase — the numbers that matter come out of what stacks into what. 62 upgrades and 13 Protocols that combine rather than add Ricochets that split on every bounce. Lightning that conducts through frozen targets Echoes of yourself that keep firing your weapon after you have moved on It escalates on eleven axes, and health is the smallest of them. Enemy health barely triples across a hundred waves. What changes is how many arrive, how fast, from where, and how much of the floor is trying to kill you. 4 enemy archetypes, promoted to Elite and Prime ranks as the run goes on The chamber itself turns against you: the floor is not neutral by level 9 Difficulty you can out-build is difficulty worth having THE OVERSEER is at wave 100. It is the reason the chamber exists, and it has been watching the whole run. Past...
Features
- Single-player
- Steam Achievements
- Camera Comfort
- #category_contrast_controls
- Custom Volume Controls
- Keyboard Only Option
- Playable without Timed Input
- Partial Controller Support






Release details
THERMAL RUNAWAY is a Action and Indie game by Alexframe. THERMAL RUNAWAY came out on Thursday, 22 October 2026 on PC. This date comes from Steam and was last checked on 22 October 2026.
Frequently asked questions
When did THERMAL RUNAWAY come out?
THERMAL RUNAWAY came out on 22 October 2026.
Which platforms is THERMAL RUNAWAY on?
THERMAL RUNAWAY is on PC.
Who makes THERMAL RUNAWAY?
THERMAL RUNAWAY is developed by Alexframe.
What kind of game is THERMAL RUNAWAY?
THERMAL RUNAWAY is a game of these genres: Action and Indie.