Laddder (ZX Spectrum, C64)

Controls

• e: Forward
• o: Turn left
• p: Turn right
• t: Teleport

Laddder

Laddder (a.k.a. Lader3D) is, as the name implies, the... er... "3D" sequel to the Lader platformer.  It's a pseudo-3D game for the Sinclair ZX Spectrum and Commodore 64 home computers, inspired by the classics 3D Monster Maze (Sinclair ZX81) and Treasure Hunt (PC/DOS).

You find yourself in a maze, which you must explore in order to find the treasures. When you find a treasure, you'll score 1 point and will be teleported to a new maze. Avoid being touched by the ghosts, otherwise you'll lose one life. If you are in trouble, you can teleport to another maze, but this will cost you 1 point. Oddly, there are no ladders in this game.

Laddder has been coded in ugBASIC for the 15th Edition (2026) of the BASIC 10 Liner Contest, EXTREM-256 and WILD categories.

Here you can play the ZX Spectrum version (emulation powered by JSSpeccy 3) in your web browser or download both the ZX Spectrum and Commodore 64 versions, along with the detailed documentation.

Downloads (contest page)

You can also download both versions of the game from the BASIC 10 Liner Contest itch.io page:

• ZX Spectrum version (EXTREM-256 category)
• Commodore 64 version (WILD category)