Tidevault

Some treasures need a way home.

Tidevault is a turn-based treasure-routing puzzle set in a sunken archive. Find the brass key, unlock the chest, and return to your dock before the air reserve runs out. Every move or wait advances the tide. Cyan and violet seals open at different phases, so the shortest route is not always the right one.

Explore three expeditions, collect optional pearls, and try to return with more air. There is no real-time countdown: take your time and plan the next beat. Blocked moves cost nothing; undo lets you rethink a route for a 25-point score cost.

Play in practice and save your personal best on this device, or open Cloud logbook and connect an anonymous diver. Once you finish an expedition, choose Submit this score to post it to that expedition's online leaderboard. It keeps your best score. No email address or wallet is required to play or connect.

Controls

• Arrow keys or WASD: move. Space: wait a tide beat.
• U: undo (25 points). R: restart.
• Click a movement control or adjacent tile; keyboard play starts when the expedition is focused.

No real-time countdown. Sound is optional and off by default. Touch controls and reduced-motion support are included.

brainCloud features

Anonymous authentication and three expedition-specific, all-time leaderboards. Complete a dive and choose “Submit this score” to save your best online. Practice works without connecting.

Created with Codex

Created by ProMartY with substantial OpenAI Codex assistance. Codex generated and iterated the game logic, interface code, procedural SVG artwork, synthesized sound code, and tests under ProMartY's direction. Graphics are code-drawn SVG and sound is generated locally with Web Audio; no stock artwork or sampled music is used. No generative AI model runs inside the game.

Credits & data

ProMartY · Original project code under MIT. The official brainCloud SDK and dependencies retain their included license notices.

Practice records stay in this browser. Connecting stores an anonymous profile in brainCloud and remembers identifiers on this device. Submitted scores and run statistics can appear in the online logbook. No email address or wallet is required.

brainCloud privacy policy