MobyGoal achieved! Thanks to all contributors who helped us reach 250 documented ZX81 Games.

Universal Boxing Manager (Linux)

missing cover art
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MobyRank
100 point score based on reviews from various critics.
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MobyScore
5 point score based on user ratings.

Linux

ESRB Rating : unknown
TIGRS Rating : unknown
PEGI Rating : unknown
VET/SFB Rating : unknown
CERO Rating : unknown
USK Rating : unknown
OFLC (Australia) Rating : unknown
OFLC (New Zealand) Rating : unknown
RSAC Rating : unknown
ELSPA Rating : unknown
Kijkwijzer Rating : unknown