Space Commander
Free · play online in your browser, no download
A turn-based roguelike for space bounty hunters: take contracts, refit your ship and work up to the boss.
Official site space-commander.gentrydemchak.com, verified Nov 3, 2026. On a subdomain of the developer's portfolio site gentrydemchak.com, whose Space Commander post has a play link to it; the entrant's X bio (@gdemchak17) also links it as a “#vibejam game”, and it is the entry URL in the official Vibe Jam 2026 games data.
Where to play
Every platform this game is on. Links are checked against official sources; we never host or mirror games.
- Play free — official siteBrowserReleased · In development (per the developer, April 2026)Free
Runs in a desktop browser. No download.
Browser (no download) · Official link verified Nov 3, 2026.
About Space Commander
A free turn-based roguelike in the browser about a bounty hunter in space. You build a ship from a chassis and modules, take bounty contracts, plot moves through a 3D scene that previews their cost, target individual enemy subsystems in combat and turn in completed bounties for credits, resources and new modules; between contracts there is a market exchange, a salvage exchange and a refit bay for swapping modules, mods and the chassis. Clearing an act's contracts unlocks a boss engagement, and runs can be started from a chosen seed and difficulty. The developer, Gentry Demchak, says some mechanics are blended from games such as Slay the Spire, Path of Exile and Homeworld, that the project began as a side project to test the limits of vibe coding, and that it was made entirely in collaboration with Codex on the Pro plan; in April 2026 the developer described it as still in development, with more than 550 features tracked. It was made for the Cursor Vibe Jam 2026, whose rules required at least 90% of each game's code to be written by AI; the official submission lists Codex as the tool. It finished 684th of 945 entries. Played with mouse and keyboard.
How it was built
Partially verifiedThe developer's portfolio post says the game began as a fun side project to test the limits of vibe coding and has been made entirely in collaboration with Codex using the Pro plan; work is tracked in a local Forgejo instance listing more than 550 features. The official Vibe Jam 2026 submission lists Codex as the tool, answers Yes to the AI-written field and gives “Test the limits of vibecoding” as the inspiration. No code share is given.
- DeveloperPortfolio post: “I started this as a fun side project to test the limits of vibe coding.” and “This has been made entirely in collaboration with Codex using the Pro plan.” — Gentry Demchak
- DeveloperOfficial jam submission: made with Codex. — Vibe Jam
- OfficialJam rule 3: at least 90% of the code has to be written by AI. — Vibe Jam (Pieter Levels)
Built with Three.js and a React interface, with Codex named as the tool; per the developer, made entirely in collaboration with Codex as a test of how far vibe coding can go. The game includes an in-game terminal for debugging and running game commands.
- Engine / framework
- Three.js
- Languages
- Not disclosed
- Team size
- Not disclosed
- Development time
- Not disclosed
- Development cost
- Not disclosed
- AI-written code
- Not disclosed
“This has been made entirely in collaboration with Codex using the Pro plan.”Verification notes: AI use, influences and the feature overview from the developer's portfolio post (19 Apr 2026), re-read on 6 Nov 2026; tool (Codex), engine (ThreeJS), genre (Strategy), pitch (“Turn based rougelike bounty hunter game in space”), inspiration and the multiplayer (No), mobile (No) and portal (Yes) flags from the entrant's answers in the official Vibe Jam 2026 games data (submitted 28 Apr 2026, 17:50 UTC; final rank 684 of 945 entries, no award), re-read on 6 Nov 2026; rule 3 on the jam page requires at least 90% AI-written code. The portfolio post is dated 19 Apr 2026, before the jam submission; the jam ran in April 2026 and only allowed games created during it. Developer: the X account @gdemchak17 (display name “devolution”) links the game as its website and calls it a #vibejam game; the game's domain belongs to Gentry Demchak's portfolio, which publishes the post. Team size is not stated; the post is written in the first person singular. The game page's title is “Space Ship Commander”. Boss unlocks, seeds and difficulty come from the post and the game's interface text; the game was not played. The game's code was checked for calls to AI services and none were found. The release date is not stated; the jam submission is dated 28 Apr 2026.
Development history
The developer publishes a portfolio post on the game, with screenshots and a play link, describing it as still in development.
DeveloperGentry DemchakEntered in the Cursor Vibe Jam 2026 (submission date in the official games data, 17:50 UTC); the jam required at least 90% AI-written code. Final rank 684 of 945 entries, no award.
Game performance
Each figure measures something different — concurrent players, owners, downloads and sales are never interchangeable and are never added together. Labels show where each number comes from.
Browser (official site)
No public metrics recorded for this listing.
Not publicly available: Concurrent players (site), Monthly revenue, Gross revenue.
Sales & revenue (all platforms)
Browser game — there are no downloads to count.
Reviews & rankings
Not yet reviewed by our editors.
Not currently ranked.
Sources
| Source | Type | Published | Accessed |
|---|---|---|---|
| Cursor Vibe Jam 2026 — rules, prizes and game stats Vibe Jam (Pieter Levels) | Official site | Not confirmed | Nov 3, 2026 |
| Vibe Jam 2026 games data (entrant submissions, final rank, awards) Vibe Jam | Official site | Not confirmed | Nov 3, 2026 |
| Space Ship Commander — game page and scripts Gentry Demchak | Official site | Not confirmed | Nov 3, 2026 |
| Space Commander — portfolio post Gentry Demchak | Devlog | Apr 19, 2026 | Nov 3, 2026 |
| devolution (@gdemchak17) — X profile X | Social post | Not confirmed | Nov 3, 2026 |
| Official game page (language check) Gentry Demchak | Official site | Not confirmed | Nov 3, 2026 |
