NullpoMino+

NullpoMino+ is an open-source action puzzle game that works on the Java platform. It has a wide variety of single-player modes and netplay to allow players to compete over the Internet or LAN.

Building

Prerequisites

• Java 25 (JDK 25) or later
• Bazel (see .bazelversion)

Run

./NullpoMino

The launcher invokes bazel build on first run to produce bazel-bin/NullpoMinoSDL_deploy.jar, then launches the game. The SDL frontend uses JNA to load SDL3, SDL3_image, SDL3_mixer, and SDL3_ttf from your system library path.

Standalone tools

Swing-based utility programs live at the repo root alongside the Java sources under src/main/java/nullpomino/tool/:

• ./ruleeditor — edit game rulesets
• ./sequencer — inspect replay piece sequences (by Zircean)
• ./musiclisteditor — configure BGM files
• ./netserver — run a netplay server
• ./netadmin — manage a running NetServer
• ./airankstool — generate a Ranks AI data file