Kiln (Super ZZT port)

Playable

PC · 2026 · Puzzle adventure · Source port

Find a key and power stone to activate two relays in an original four-board puzzle.

Opens in a new tab. About 1.4 MB on first load. Silent edition; no audio device.

Controls

	Click game to focus
`Enter`	close introduction/select
`P`	play or start again from the menu
`Arrow keys`	move; after Play/Restore, move to resume
`S, then Enter`	save checkpoint
`R`	restore from the start menu
`Escape, then Y`	return to the menu
`Stop`	unload the game and return to this page

About this build

Kiln runs independently authored CC0 maps, scripts, help text and glyphs in a native C++ port/rewrite derived from the permission-backed Super ZZT reconstruction. The edition is a small original relay puzzle. It is not the original Super ZZT campaign, a matching Pascal/DOS decompilation build, emulation or a certified clean-room reconstruction. No ROM or original retail files are needed.

Built from: OpenZoo reconstruction-derived native Super ZZT C++ port in WebAssembly
Type: Source port
Game files: No ROM or original game files needed. Original commercial worlds, art, fonts, animations and audio are excluded.
Code licence: MIT OpenZoo and permission-backed reconstruction; own adapters MIT; SDL2 zlib/yuv2rgb BSD-3-Clause and separately noticed permissive Emscripten/musl/LLVM runtime
Assets: CC0-1.0 independently authored maps/scripts/help/glyphs; host and world/build generators MIT; font generator CC0; system fonts retain their terms
Source: OpenZoo/openzoo-prototype-cpp ↗

What has been tested

Archive-rebuilt release candidate: normal keyboard key/door consumption, passages, scrolling, east-current carrying, stone pickup and gated relay, final KILN_DONE/score150 and native menu restart to score0/flags cleared. Earned stone native save restored byte-for-byte after full browser restart and ordinary R/menu/up-step; 37 native checkpoints independently checked and 34 malformed cases rejected. Player Stop unload tested locally; published acceptance is recorded separately in the dated distribution report. No retail campaign, lethal/combat/audio or all-engine claim.

Last tested 2026-10-13 in Headless Microsoft Edge on Windows; muted. Full playthrough: verified. How games are tested.

See the dated distribution and gameplay record.

Known limitations

Original four-board puzzle, not the retail campaign or all legacy engine/editor/help features.
Opens as a separate tab; requires cross-origin isolation, WebAssembly threads and keyboard. Other browsers, touch and controllers unverified.
One earned stone checkpoint tested through full browser restart. Crash/rapid-close/storage refusal/quota/corruption/transfer and other save states remain unverified.
No authored lethal hazards or combat; death/combat coverage is not claimed.
Audio device omitted and all tests muted; no audible verification.
19 retained compiler warnings and unexercised legacy paths remain; glyph inventory is scoped to this authored puzzle.

Saves

Native SAV files persist in this browser under decompgames-kiln-super-zzt-saves-v2. Wait for Checkpoint saved locally before closing. R restores from the start menu; move to resume. Clearing site data removes saves; no portable transfer/export.

Build and corresponding source

Compiled with Emscripten 6.0.10 / SDL2 2.32.10 / C++20 from revision 442ff28c423faa947793e8a69a99a0e98f52796d.