A-Code A-Code 1 A-Code version 1 was used for the very first Level 9 games. Spectrum games in this format had black text on a grey background. A-Code 2 This version of A-Code was used for Level 9 games released between 1984 and 1985. It introduced the yellow text on a black background which would later become standard. A-Code 2 can be played with Level9. A-Code 3 Version 3 of A-Code was introduced by Level 9 in 1986 and was the version used for the largest number of games. A-Code 3 can be played with Level9. A-Code 4 The A-Code version 4 format was introduced by Level 9 in 1987 and used on all new games from then on. A-Code 4 can be played with Level9.

Adventureland was created by Hans Persson and is now maintained by Stefan Meier.

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