CHAIN REACT

Turn enemy swarms into chain explosions in this free 3D arcade prototype.

Your drone aims and fires automatically. You handle movement, dash through danger, and trigger Overdrive at the right moment.

Fight through five reactor sectors. Choose three combat tracks and connect them to unlock pull, fragment, and orbital synergies. New synergy tiers open in Sectors 3 and 4. Recovery and collection upgrades keep your combat slots free. Unlock one evolution and keep growing through repeatable Overclock upgrades. Flank shielded tanks, dodge charging drones, and escape marked boss attacks.

Clear Sector 2 to unlock Scatter. Beat the final reactor to unlock Lancer and chase a faster run.

New in 0.4.0: upgrade popups keep the arena visible, and the soundtrack keeps playing while you choose. Music: Made with ElevenMusic.

Watch: custom max-build showcase

A staged showcase with all upgrade tracks and synergies maxed, faster bullets and scripted movement. This custom setup exceeds the normal three-slot build limit. Includes the final boss at its standard starting health.

Controls

• WASD / arrow keys: Move
• Space: Dash
• E: Overdrive
• Esc: Pause
• 1 / 2 / 3: Choose an upgrade

Saving

Weapon unlocks and records save in this browser when storage is available. Refreshing ends the current run. No cloud saves.

Playtest feedback

What sector did you reach? What made you stop? Did you want to try another run? Leave a comment to help shape the next update.

Version 0.4.0. Best played on desktop with a keyboard.