Game & Simulation

Jev beat Pokémon Red in 37h 40m over 16,150 decisions for about $1.65, picking every move from harness-listed legal options.

AI town simulation forked from a16z ai-town where Jev picks each agent's next legal move and an LLM handles dialogue and memory.

Browser driving simulator on real Canadian streets where you can replay every decision the AI driver made and why.

Twenty-questions game where Jev's confidence decides when to stop: it commits, hedges or refuses to guess.

Japanese quiz demo where Jev guesses which of AWS, Azure or Google Cloud a debranded service name belongs to, showing its probabilities.

Browser Doom experiment where two WebAssembly engines play from the same start and Jev picks tactical macros from structured state.

Live demo where Jev plays Flappy Bird alone, answering flap or wait about twenty times a second with several requests in flight.

MoonBit client for Jev with a CLI and a Jev-versus-Jev gomoku match, plus a tool turning timed game logs into GIFs.

Local Snake game where code computes facts for each legal move and a local Qwen3.5 picks one in a single Jev-style Choice pass.

WebGL card game Speed against a Jev-powered CPU, showing Jev's decision latency and accuracy against a rule validator in real time.

Chromium T-Rex Runner game where Jev chooses jump, duck or keep running for each obstacle, plus short or full jump.

Streamlit Tetris demo where Jev picks one collision-checked placement ID and Python verifies cells before locking.

Deterministic 3D restaurant simulator that replays the same evening to compare rule-based, camera-assisted and Jev-planned waiters.

Simulated espresso bar where an XState machine defines what is possible and Jev chooses the barista's next event.

Chicago traffic simulator comparing fixed, adaptive and Jev-guided citywide signal policy on identical scenarios.

Toy archipelago air-traffic sim where each plane asks Jev every 1.6 s whether to divert, declare an emergency, give way or land.

3D Magic 8 Ball you shake and release, where Jev chooses among the 20 classic answers and shows a probability for each.

Desktop Snake where one Jev call per tick asks nine hazard and food questions for left, straight and right, and Python combines them.

Terminal Sudoku where Python owns the rules and Jev picks one move per turn, solving easy boards but struggling once it must guess.

Simulation where Jev picks which of two conflicting signal phases gets green at a real Hong Kong junction from live open sensor data.

Experimental controller where Jev picks NES inputs for Super Mario Bros. from structured emulator RAM and telemetry, not screenshots.

Interactive Jev experiments, from a support-message decision lab to 3D self-driving demos with steer, speed and overtake decisions.

Experimental Minecraft bot where each TypeSafe decision picks one primitive action, which completed a 338-block flag build in recorded runs.

Kotlin NES emulator whose agent plays Super Mario Bros. and Final Fantasy, with a local model choosing from the goals that apply each turn.

Reinforcement-learning lab where cached Jev judgments act as reward signals for DQN agents on four classic control and grid games.

PlayJev: Qwen3.5-0.8B fine-tuned to play ten browser games from raw pixels, one forward pass per move with a probability per option.

Harness where Jev or Laya pick DOOM tactics and targets from legal options while a deterministic controller presses buttons.

Three-level AI interrogation game where Jev gives plea, logic and paradox verdicts on the player's statements.

Harness where Jev plays the first StarCraft shareware mission from structured state, with recorded per-decision action probabilities.

P(DOOM) Protocol: co-op browser platform shooter where TypeSafe Jev plays alongside the user.