Ladder
Ladder is a platform game similar to Nintendo's Donkey Kong written for the CP/M operating system and made to be operated on the early Kaypro line of luggable computers. Written by Yahoo Software of Los Angeles, California. Along with Star Trek, CatChum and Aliens, Ladder was one of the games that came with the software bundle of the early Kaypro computers.
Ladder

Mir09info · Public domain
- Date
- 1982.
- Publisher
- Kaypro.
- Genre
- platformer.
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Documentary summary
Ladder is a platform game similar to Nintendo's Donkey Kong written for the CP/M operating system and made to be operated on the early Kaypro line of luggable computers. Written by Yahoo Software of Los Angeles, California. Along with Star Trek, CatChum and Aliens, Ladder was one of the games that came with the software bundle of the early Kaypro computers.
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wikidata · Q6469305
In this article
Key facts
Key facts
• Title — Ladder • Developer — Yahoo Software • Publisher — Kaypro • Released — 1982 • Genre — Platform • Modes — Single-player • Platforms — Kaypro
Gameplay
Gameplay
Since the Kaypro only has a text mode, the game uses letters, numbers, and symbols lined up to create walls and platforms, pits/traps, characters, trampolines and goals. The floors in Ladder are made of equal signs, and the ladders themselves are made of capital "H"s stacked on top of each other. The "lad" controlled by the player starts out as the letter "P" (lowercase "q" on left), the treasure is the dollar sign "$" and the ampersand "&", and barrels ("der rocks") are represented by "o"s. The catchphrase of the game reminded the acolyte player that there are more ways than one to skin a cat. This referred to the fact that the minimized traverse of almost all levels could be enhanced by inventive utilisation of the game features, and the highest levels absolutely required it. These could entail (at the apex of the game) for instance jumping on a trampoline at precisely the right speed and point of impact to fall into one of the pit/traps, at the right timing that there would be no barrels passing for a sufficient interval.
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Places
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United States.
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Ladder is associated with United States.
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Notes from the source article
Cited by Wikipedia
Notes from the source article
These works are cited by the source article, in its own numbering. They are recorded as its citations, not as sources VALÉORINE has verified.
- 1.BAM Publications. 2. 48–49. 1985.
- 2.Review: Kaypro 10. InfoWorld. 5. 44. 109. October 1983.
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The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 18 August 2026.
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