VibeGameDB lists 5 games in this group, 18% of the 28 games on the Gemini page. Each one has a source for how it was made. The most common engine is No engine (HTML5) (40%). 4 are free or free to play and 1 is paid; 3 can be played in a browser. The most recently added is Frontline Zero (November 2026).
Ordered by editorial score, then player rating, then release date. Open a game for its sources.
A numbers-heavy blacksmith tycoon: appraise materials, bend the rarity of every blade you forge, and send hired adventurers into dungeons instead of fighting yourself.
Download required
View on Steam
Link villages with roads, rails, airports and ports and watch them grow into cities, in an isometric transport tycoon built as one HTML file. The developer credits the code to Claude.
Plays instantly in the browser
Play free — official site
Build a deck of unit cards, then move your troops in real time on a board in this free Windows beta; its solo developer says Gemini and Claude did the programming through Antigravity's agent.
Download required
View on Freem!
A free-to-play classic base-building RTS of modern war, Ukraine against Russia, with drones, jammers and artillery on twelve maps based on real places.
Plays instantly in the browser
Play free — official site
Chinese chess turned into a roguelike: drop pieces anywhere on the board, upgrade them and fight across maps of monster pieces and terrain. The developer says Gemini, later Codex, wrote it without a line of hand-written code.
Plays instantly in the browser
Play free — official site