What is Subchrist Software?

Subchrist Software is a retro-gaming development tool maker founded in 2001, best known for its Commodore 64 graphics editors SpritePad and CharPad. If you are building C64 (or, more recently, Commodore 16 / Plus/4) games and need to design sprites, characters, or tile maps on Windows, this is the studio whose tools most retro developers reach for. Its itch.io page is where the current paid Pro versions and several free tools are published.

What the studio actually makes

Subchrist's output is Windows desktop software for preparing game graphics and data, not games themselves. The product line splits into three areas:

• Tape preservation — Final TAP, the studio's first project, performed digital remastering of software transferred from cassette tapes. It played a central role in a race-against-time effort to save thousands of classic game tapes from being lost to magnetic degradation or "bit rot."
• Graphics editors — SpritePad (sprite images and animations) and CharPad (character graphics and game maps) for 2D games. The studio says these have been refined for well over a decade and are considered by most retro-gaming developers to be the best available.
• Effects tools — CharPad Glaze C64, a parallax effects builder and viewer.

Products and prices on itch.io

All are Windows desktop tools. The twin-pack at $20 is cheaper than buying CharPad C64 Pro and SpritePad C64 Pro separately at $15 each, so it is the obvious pick if you need both.

Where it sits in the retro dev landscape

The studio spent almost its entire history on the Commodore 64, the 1980s machine that defined its catalog. The recent release of CharPad C16 Pro marks its first real expansion beyond the C64, targeting the Commodore 16 and Commodore Plus/4 with an advanced tile-map editor. That matters if you work on those less-common platforms, since tooling for them is far scarcer than for the C64.

How to decide if it's for you

• You're making a C64 game and need graphics tooling — start with the free CharPad C64 (old version) to test the workflow, then move to the Pro versions or the $20 twin-pack if you need the current feature set.
• You're targeting C16 or Plus/4 — CharPad C16 Pro is the relevant product; the C64 tools won't cover that platform.
• You only need parallax effects — CharPad Glaze C64 is free.
• You're preserving cassette software — Final TAP is the historical tool associated with that work, though it is not listed among the current itch.io products above.

Because the page lists no pricing signals beyond the product prices shown, treat the paid tools as one-time purchases at the listed amounts and check the itch.io page directly for the latest versions and any updates.