Godot Destruction Core – Godot 4 2D destruction, collapse & chain reaction kit

Blow it up, watch it fall, let it burn: deterministic 2D destruction for Godot 4.

Godot Destruction Core: deterministic 2D destruction for Godot 4 in typed GDScript: destructible cell terrain, structural collapse, chain reactions and fire. Free MIT Lite on GitHub (82 headless tests), Pro on itch.io (142 headless tests).

Built with Godot Destruction Core — footage from Toonforce (in development)

Get it

Lite (free, MIT): https://github.com/openclawaimac/godot-destruction-core-lite – Destructible cell terrain, damage shapes, single detonations and deterministic structural collapse with falling pieces, rubble and crush damage, plus a two-player demo. 82 tests.
Pro (€16.00 EUR, commercial EULA): https://huginhelm.itch.io/godot-destruction-core – Adds chain reactions, deterministic fire, load-based stress, image/mask import, debug overlays, command log/replay and the Fire Sale demo. 142 tests.

Engine: Godot 4.6+ (tested on 4.7.2) · Language: typed GDScript · Version 0.2.2 · Run tests: bash tools/run_tests.sh

Lite vs Pro

Feature	Lite (free, MIT)	Pro (EULA)
Cell grid, materials (integer hp, resistances, anchors, rubble), damage shapes with falloff	✅	✅
Single detonations, budgeted scheduler, signals	✅	✅
Determinism: integer state, SHA-256 digest, snapshot/restore, per-player instigator credit	✅	✅
Structural collapse: resumable support check (no size cap), falling pieces, rubble, crush damage	✅	✅
Debris pool, basic feel (shake, once-per-chain hitstop, reduced motion)	✅	✅
TileMapLayer renderer, per-chunk merged collision	✅	✅
Demo UI kit: own pixel font, styled HUD, comic callouts (MIT)	✅	✅
Chain reactions (DKChainReactor): fuses, merging, per-tick budget, runaway caps, barrels/triggers, explosive materials	–	✅
Fire (DKFire): deterministic spread, burn-out to ash/charcoal, burnt supports collapse, flames light barrels	–	✅
Load-based stress (DKStress): shear and crush failure, budgeted sweeps, analysis-only heat map	–	✅
Image/mask import (DKMaskAdapter): alpha or palette images to the grid, mask carve stamps, grid to image	–	✅
Debug overlays: chain graph, stress heat map, "why did this fall?" inspector, frame-budget HUD	–	✅
Command log and replay (DKCommandLog): record, replay to an identical hash, checkpoints, save/load	–	✅
Demos	"Collapse" (2 local players)	+ "Fire Sale" run-and-gun demo (O = debug overlays)
Web builds (HTML5 export presets)	Collapse	+ Fire Sale
Headless tests	82	142 (82 Lite + 60 Pro)
Licence	MIT	Commercial per-seat EULA

Features

Destructible cell terrain: integer hit points, resistances, anchors, rubble; circle, rect, line and cell damage with falloff
Structural collapse with a resumable support check (no size cap), falling pieces, rubble and crush damage
DKStress (Pro): load-based shear and crush failure, budgeted sweeps, analysis-only heat map
DKChainReactor (Pro): fuses, merging, per-tick budget, runaway caps, barrels/triggers, explosive materials, one hitstop per chain
DKFire (Pro): deterministic spread, burn-out to ash/charcoal, burnt supports collapse, flames ride falling pieces and light barrels
DKMaskAdapter (Pro): alpha/palette images to terrain, mask carve stamps, grid to image
Debug overlays (Pro): chain graph, stress heat map, "why did this fall?" inspector, frame-budget HUD
DKCommandLog (Pro): record and replay to an identical hash with checkpoints, save/load
Per-player credit for every blast, collapse, chain and fire; SHA-256 state digest, snapshot/restore
Pure typed GDScript, no GDExtension; web builds of both demos with pixel-art smoke, fire and shock-ring effects

Not included

Cell-based, not per-pixel or rigid-body fracture; pieces do not collide in the air
No networking
Tested headless on Godot 4.7.2 and 4.6 and in headless Chrome; real browsers/devices not tested

Preview

Godot Destruction Core Fire Sale demo: barrel chain reaction

Screenshots

Godot Destruction Core screenshot: toonforce chain finale — Built with Godot Destruction Core — footage from Toonforce (in development)

Godot Destruction Core screenshot: toonforce domino row — Built with Godot Destruction Core — footage from Toonforce (in development)

Godot Destruction Core screenshot: fire sale depot tank chain

Godot Destruction Core screenshot: fire sale barrel chain boardwalk

Godot Destruction Core screenshot: fire sale barn fire

Godot Destruction Core screenshot: fire sale water tower collapse

Godot Destruction Core screenshot: fire sale cabin crash

Godot Destruction Core screenshot: debug overlays why did this fall

Godot Destruction Core screenshot: lite collapse keep blown

Godot Destruction Core screenshot: lite collapse watchtower crash

Assets & licence

All demo art is original procedural pixel art and all demo sound is synthesised in code; no third-party or AI-generated assets. Toonforce footage shows the kit in use and is not part of the download.

Lite is free under the MIT License. Pro is sold under a commercial per-seat EULA: you can ship unlimited commercial and non-commercial games; you may not resell or redistribute the kit's source or assets as a template.

Code and docs written with AI coding agents. Machine-readable summary: llms.txt.