Homebrew tools.
Next projects.

TwistedRaven is one person building the retro-development tools I always wished I had — an assembler, a language and an emulator, made for the fun of it.

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15 Oct 2026ZX Spectrum Next Starwake Trail Bad Apple Demo

Starwake Trail and Bad Apple Demo for the Next

Two of my ZX Spectrum Next projects now have a home on the site: Starwake Trail, a rolling-ball game, and Bad Apple Demo, a conversion of the original Bad Apple demo for the Next. Starwake Trail is on itch.io, and the Bad Apple download is …

15 Oct 2026

Octarine Studio

Octarine Studio 0.7.0.0 is available

Octarine Studio 0.7.0.0 is available to download, the first release built on Qt 6 and the first with installers for macOS, Windows and Linux.

6 Oct 2026

Bizmuth

Bizmuth 1.0.0-rc3 is available

Bizmuth 1.0.0-rc3 is available to download. Seven new ADP commands let a tool drive the emulator: reset it, run a bounded number of frames, read physical RAM, swap SD cards and capture audio. The Copper and the AY mixer behave more like the…

ZX Spectrum Next projects

Explore the projects →

Starwake Trail

ZX Spectrum Next

Bad Apple Demo

ZX Spectrum Next

Development tools

Bizmuth

v1.0.0-rc3

A ZX Spectrum Next emulator with a source-level debugger, breakpoints and scripting.

The Bizmuth emulator →

FantASM

v2.2.0

A cross-platform Z80 assembler — the complete Z80 and Z80N instruction set, macros, structs and Rhai scripting — with first-class ZX Spectrum Next support.

The FantASM assembler →