NULL//KNUCKLE was built in one session in September 2026: a turn-based fighting game for two players sharing a keyboard. Both players pick a move in secret, then see the result together, and nothing is left to luck. It came out complete, with ten fighters and six moves, and 46,806 scripted fights checked the rules before a person ever played it. The game on the shelf today is that first build, byte for byte.
The first build is a finished arcade duel. Each player locks in one of six moves, strike, throw, guard, feint, charge or overdrive, and neither sees the other choice until both are in. Strike beats throw, throw beats guard, and guard beats strike. The first to win two rounds takes the match, and from beat 13 a reactor burn drains both fighters by 5 health every beat so stalling does not work.
The start of a match: Burnout against Maw-0 with six move cards below and hidden inputs.
4PlaytestReal hands on it. Fix what trips them up.
· First build checks
46,806 test fights before anyone played
Before it was handed over, the build ran 46,806 scripted matchups covering every fighter pairing, both seating orders, charge limits, passives and the reactor burn. All passed. Browser checks covered a full match, a rematch, hidden choices, illegal moves, the rules panel, the sound toggle, reduced motion and three screen sizes. The notes admit that balance and real two-person play were still untested.
The fighter select screen with Burnout and Maw-0 chosen and all ten fighters in a row.
6UpdatesWhat changed after release.
· On the shelf
Added to the shelf for two on one keyboard
NULL//KNUCKLE was listed on the Secondhand Saves shelf with the line: Ten fighters. One keyboard. The game matches the first build byte for byte, so nothing about play changed.
· Arcade capture
Two fighters lock in
A new capture shows both players committing to a move before the result is revealed: Burnout uses Feint against Hex Knight Charge. It is the first video of the game on the journal. The game was not changed.
Burnout uses Feint against Hex Knight’s Charge in a local two-player duel.Hex Knight and Burnout face off before either player locks in.The arena during the exchange.
