SaboStack: real-time 1v1 PvP block puzzle (Google Play, 5K+)

SaboStack: Block Puzzle PvP is a real-time 1v1 online block-puzzle game for the browser and Android, live on Google Play with 5K+ downloads (sabostack.com). Clearing lines gives energy, and energy buys attacks on the rival: Blindness, Inverted Controls, No Rotate, Field Shift, Side Wind and others. Modes: Quick Match (a bot steps in if nobody is online), private rooms by link, and practice vs bot. Fair play: attacks come only from clearing lines, with no paid boosts.

I built it myself, including the game server in Go (open source: https://github.com/Gegirhasut/sabostack-go-server). The server is authoritative, runs one goroutine per match with a round state machine, accepts idempotent sequenced inputs, supports reconnect with catch-up, keeps snapshot recovery in Redis and runs as a multi-node cluster.