Engine Slots Explorer

Search and browse every live slot on Engine (studio.engine.io), ranked by players and turnover, with a per-game stats panel (RTP, max win, volatility, 30-day turnover trend) and — when run locally — an embedded playable demo.

Live (browse only): https://olasted.github.io/engine-slots/

Browsing

Just open the live link, or any static host. It reads Engine's public insights API directly from the browser (open CORS, no login). No backend needed to browse.

Playing demos (local launcher)

Demos can't run on the static site: Engine's launch endpoint (/api/teams/.../play) has no CORS and sits behind Cloudflare, so the browser can't call it. The included launcher fixes that using curl_cffi with a real Chrome TLS fingerprint, which also gets past Cloudflare's bot checks.

pip install curl_cffi
python server.py            # -> http://localhost:8000   (python server.py 9000 for another port)

Then open http://localhost:8000, click any slot, and the Demo panel at the top of the card does:

1. Fast check — tries the common share version instantly.
2. If nothing, a "Search harder" button scans every share version slowly (probing the share grid with the Chrome-impersonated client), then launches the first that exists.
3. If a demo exists, the live game is embedded in an iframe (the live host sends frame-ancestors *, so it's embeddable). "Fresh session" relaunches.

Important reality check

A demo only exists for games whose studio published a public share link. The ~6,700 live games on operators mostly have none — Engine returns 403 and the panel says "no public demo." The launcher will play your own shared games (e.g. squiffy-slots/toxic-mess) and any others that were shared publicly. This is a platform limitation, not a bug in the tool.

Files

• index.html — the single-page app (browse + demo UI).
• server.py — local launcher: static server + /launch proxy (curl_cffi, Chrome TLS).
• API_NOTES.md — full analysis of Engine's API.