This is very early in development, but might turn into something usable eventually?

The goals for this add-on are to provide a quick-to-setup, but flexible structure for high-quality 3D grid-based puzzle games, such as Cosmic Express and A Monster's Expedition. My current thoughts on what might be universal enough to include are:

• Board/piece state tracking and querying
• Piece animation system with queuing and simple tweening defaults
• Undo history and checkpointing
• Save/load system
• Level editing tools (probably a version that you can lay pieces out along a plane, and a version that lets you build out complex 3D structures)