BEYOND THE DOOR IS OUT!

BEYOND THE DOOR (10 liner) is a game written in ugBASIC and that runs on various 8-bit home computers like ATARI 400/800, COMMODORE 64, TRS-80 COLOR COMPUTER 1/2/3, AMSTRAD CPC 664, MSX and ZX Spectrum 48K/128K/+2.

The aim of the game is to exit from a maze, choosing the right door and avoiding the monster that chase you. You have a limited time to choose, and to explore the various doors. It is a self-competiting game, and it is designed for one player.

This game joins the  "BASIC10Liner" competition 2025: the game itself is modest in size, and the given source code respects strong constraints on the length of each line (category: EXTREME-256) and it does not rely on third party libraries. 

This cross-platform game would not have been possible without using ugBASIC: it is an isomorphic language and it has cross compilers that works on Linux and Windows, that directly converts high level algorithms into the assembly equivalent for the given CPU / computer.