Book of Codex is a single-page slot experience inspired by the classic Book of Ra games and remixed into a neon-futuristic datascape. Spin five holographic reels, chase scatter wins from the living codex, and uncover bespoke cyber symbols.
No build step is required—the project is a lightweight HTML/CSS/JavaScript bundle.
- Open
index.htmlin any modern browser. - Choose one of the preset bet-per-line stakes and press Spin the Codex (total stake = bet × 9 lines).
- Watch the reels cycle for a few seconds, then track glowing paylines, expanding specials, and scatter highlights as the results resolve.
- Futuristic interface rendered in midnight blues with animated "code rain" cascading behind the reels.
- Weighted reel generation with the authentic nine-line Book of Ra payline map and payout structure.
- Sequential reel reveals with spinner placeholders, payline overlays, and scatter callouts once the results land.
- True-to-source free spin feature: 3+ Codex Gateways trigger 10 free spins with a random expanding symbol that pays anywhere.
The game ships with the following cyber-infused symbols. Adjust weights and payout tables in game.js to tune RTP and volatility.
Each symbol references an image under assets/symbols/. Swap in your own artwork by replacing the files at the referenced paths.
- Codex Gateway (Wild & Scatter): Living databook that substitutes on lines and awards scatter payouts at 3+ appearances.
- Neon Hacker: High-paying intruder who rewrites the codex mid-spin.
- Quantum Key: Phase-shifting key that unlocks encrypted vaults of data.
- Sentry Drone: Autonomous watcher ensuring no packet escapes the codex.
- Glitch Bug: Mischievous code bug that multiplies outcomes when caught.
- Data Shard: Fragmented storage block still humming with power.
- Biostrand Relay: Living filament that braids biotech with the codex signal.
- Encrypt Rune: Protective sigil keeping sensitive scripts obfuscated.
- Pulse Wave: Telemetry burst mapping the codex's topology.
- Circuit Sigil: Charged rune channeling energy through every reel.
Scatter payouts mirror Book of Ra: 3/4/5 Codex Gateways award 2×/20×/200× your total stake.
- Landing three or more Codex Gateway symbols in any position awards 10 free spins using the triggering bet per line.
- A random non-book symbol becomes the expanding feature for the duration of the free-spin session and any retriggers.
- During free spins, expanding symbols pay like Book of Ra—meeting their required reel count causes them to cover entire reels and pay as if on every line, regardless of adjacency.
- Additional sets of three or more Codex Gateways retrigger +10 free spins with the same expanding symbol.
- Free spins auto-play consecutively, mirroring the pacing of the original slot.