AsepriteDotNet importer for layers, cels, tags, slices, tilesets, and tilemaps. Official optional package: listed in Package Manager, not mounted until installed.

Shared 2D types, sorting, and utilities used by Sprite, Tilemap, and Pixel Perfect.

Recast/Detour navmesh bake, query, agents, and the Navigation window. Official optional package: listed in Package Manager, not mounted until installed.

Retained-mode GameObject UI for XEngine

Sprite atlas, SpriteRenderer draw modes, retained batching, and sorting groups.

Visual behaviour graphs for XEngine: reactive behaviour trees, hierarchical state machines, and multi-actor dialogue trees on one shared node-graph core. Official optional package: listed in Package Manager, not mounted until installed.

Spline profiles, fill/edge/corner sprites, and collider generation for 2D shapes. Official optional package: listed in Package Manager, not mounted until installed.

Meta-package that installs every first-party XEngine 2D subpackage. Official optional package: listed in Package Manager, not mounted until installed.

RuleTile, AnimatedTile, WeightedRandomTile, GameObjectTile, and extra brushes. Official optional package: listed in Package Manager, not mounted until installed.

Minimal Unity-ProBuilder-style procedural geometry for XEngine: parametric shapes (grid plane / cube / stairs / ramp) as engine meshes with automatic MeshRenderer + static MeshCollider wiring. zonezero M5 arena.

Pixel-perfect camera crop, stretch fill, grid snapping, and upscale preview. Official optional package: listed in Package Manager, not mounted until installed.

Esoteric Spine 3.8 skeletal 2D animation runtime. Mutually exclusive with com.xengine.spine (4.x). Official optional package: listed in Package Manager, not mounted until installed. Users of this package must hold their own Spine Editor license.

3D heightmap terrain with splat layers, grass, trees, and sculpting tools. Official optional package: listed in Package Manager, not mounted until installed.

Cutscene/sequence editor for XEngine — built on the PlayableGraph runtime

Official optional TypeScript game scripting and hot-update for XEngine: authors gameplay as TypeScript, packs it with the editor toolchain, and runs it on QuickJS behind a versioned native ABI on Windows and HarmonyOS players. Installs the script runtime,

Official optional IL interpreter for NativeAOT players: executes supported hot-update C# assemblies as data on HarmonyOS and desktop. Installs the interpreted-assembly classification, module loader, VM and host binding tools.

Minimal MagicaCloth2 bone-cloth port for XEngine (zonezero M11 P0): per-bone verlet chains with tether/distance constraints, sin-noise wind, sphere colliders, world-rotation write-back after the Animator.

Hosted web-content surfaces (WebSurface sessions, frame pipeline, XGUI presentation). Official optional package: runtime-only; authoring stays in the three.js host tooling.

SpriteSkin, Bone2D, SpriteLibrary, IK, and Sprite object-reference tracks. Official optional package: listed in Package Manager, not mounted until installed.

Grid, Tilemap, TilemapRenderer, palettes, and sparse chunk rendering. Official optional package: listed in Package Manager, not mounted until installed.