Mastermind RK is a little cross-platform game for various classic Z80-based computers, written in C using the z88dk compiler (www.z88dk.org).

Your goal is to break a four-digit colour code in as few moves as possible.

The compiled program is a little over 8K in size, so it usually requires the target machine to have at least 16K RAM.

Currently, 86 target systems are supported, including Mattel Aquarius, Sinclair ZX80 and ZX81 (with a separate Chroma colour version), ColecoVision, various Robotron computers, Philips P2000 and VG5000, and many more.

2026-06-29:
- New targets supported:
Heathkit H89 / Zenith Z-89
Triumph Adler P2
Xerox 820

Project Samples

Casio PV-2000 Sharp X1 Sinclair ZX81 Robotron Z1013 Hübler Grafik-MC

Project Activity

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Categories

Board Games

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Additional Project Details

Programming Language

C

Related Categories

C Board Games

Registered

2020-01-08
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