Skybreaker: Rebuild Protocol — Demo
A downloadable game for Windows
Destroy the city. Watch it react. Push the simulation further.
Skybreaker: Rebuild Protocol is a 2D sandbox destruction game about experimenting with disasters inside a living simulation. Unleash meteors, fire, lightning, tornadoes, frost, demolition charges, and stranger tools on reactive stick-figure cities.
THE CITY RESPONDS
Citizens panic, firefighters answer emergencies, workers repair damage, and the city rebuilds what you destroy.
DAMAGE HAS CONSEQUENCES
Structural damage persists instead of disappearing immediately. Every experiment leaves a mark on the world.
EXPERIMENT. EARN. ESCALATE.
Earn Ruin Points (RP) through destruction, then spend them to unlock new tools, maps, and upgrades. Combine what you unlock to create increasingly spectacular chain reactions.
DEMO FEATURES
- Physics-driven destruction and persistent structural damage
- Reactive citizens, workers, firefighters, robots, and drones
- A growing arsenal of unlockable tools and surprising combinations
- Multiple maps with unique buildings, populations, and systems
- Ruin Point progression with unlockable tools, maps, and upgrades
CONTROLS
- Mouse: select and use tools
- Left and right mouse actions vary by tool
- An in-game tutorial and controls menu are included
FOLLOW DEVELOPMENT
This Windows demo is in active development. Report bugs, share your most spectacular chain reactions, and wishlist the full game on Steam.
Developed by NirNova98.
| Published | 11 days ago |
| Status | In development |
| Platforms | Windows |
| Author | NirNova98 |
| Genre | Simulation |
| Made with | pygame |
| Tags | 2D, Destruction, Explosions, Mouse only, Physics, Robots, Sandbox, Singleplayer, upgrades |
| Average session | About a half-hour |
| Languages | English |
| Inputs | Mouse |
| Links | Steam |
| AI Disclosure | AI Assisted, Code, Graphics, Sounds, Text |
Download
Install instructions
WINDOWS INSTALLATION
1. Download Skybreaker: Rebuild Protocol — Demo.
2. Extract the ZIP file to a folder.
3. Open the extracted folder and run the .exe file.
No additional software is required. Keep all extracted files together, and do not run the game directly from inside the ZIP.





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