Nullbreak Protocol
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About Nullbreak Protocol
Nullbreak Protocol is a sci-fi arcade roguelite built around clearing rooms and descending through an ever-changing system. You launch your core to shatter every block, then survive the attacks the room sends back. Rooms grow denser and more hazardous the deeper you go, and your score is based on depth rather than reaching a victory screen.
Build your run
Between rooms, you draw protocols: modular upgrades that change how a run plays. You can stack and chain their effects or specialize your build. More than 20 protocols include side cannons, pulse lasers, shockwave radius and overclocked speed, so each run can take a different shape.
Read the room
The system combines 14 block types, each presenting a different problem. Turrets track and fire, laser nodes sweep the arena, and explosive blocks trigger chains. Shields resist breaking, regenerators heal nearby blocks, phase blocks flicker out of reach, and mirrors and accelerators change your core's path.
Progress and create
Clear rooms to bank fragments and unlock protocols and run-start bonuses. Persistent progression carries unlocks across runs, each of which contributes to your next attempt. You can also use the in-game editor to build custom rooms and play them directly.
Key features
- Fast-paced arcade play designed to be easy to start and hard to master
- More than 20 stackable protocols for run-defining builds
- 14 distinct block types, including turrets, laser nodes, phase blocks and mirror blocks
- Endless descent with escalating difficulty and depth-based scoring
- Persistent progression with protocols and bonuses unlocked across runs
- An in-game editor for building and playing custom rooms
Frequently asked questions
Yes. Nullbreak Protocol is free to play on Steam, so there is nothing to buy to start playing.
The minimum requirements for Nullbreak Protocol are: Windows 10, 4 GB RAM, 1 GB storage. It runs on Windows only. The recommended specs are in the System requirements section.
No. Nullbreak Protocol is a single-player game.
Yes. Nullbreak Protocol is the full base game. You need nothing else to play it.











