Last month, Master System website SMS Power announced the winners of its 2023 coding competition. The winner was Extreme Volleyball Infernal League by raphnet - volleyball, but hosted by a demon king

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The other games were:

Primates by willbritton - port of the classic Microsoft QBASIC game known as GORILLAS.BAS.
Where is it ? The Quest for the 10th island by Ricco59 - an original puzzle game where you have to find the correct 3x3 pattern before the time expires.
Artfull by Z80ASMprogrammer2022 - a picture guessing game for two players
Lil Evel Knievel by SteveProXNA - Lil Evel Knievel defies gravity with his gnarly skate board skills to conquer the original Wonderboy aquazone
Shootagem by joe - light gun based puxxle game
Monaco Master by Louis The SEGA Nerd - traffic dodging racing game

You can find out more at SMS Power