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SYSCALL: RING ZERO

Achievements
Reverse-engineer a private 1990s BBS. Read disassembly, patch broken checks, optimize a nine-core rack, and write assembly firmware that locks onto live scope traces. With 200+ puzzles, full controller support and offline play, you can refine your assembly skills on all your devices!
summary by MetaCritic
Release date:03 Jul 2026
Last update:02 Jul 2026 (on Steam, public branch)
Developers: Chilling Moose Games
Publishers: Chilling Moose Games, This Is Neat
Included in Steam Family Sharing
Players
  • Current 0
  • Peak 1
Last two weeks Tracked from Steam