Inspired by a recent post by Kara Jane Adams, here is a list, in no particular order, of some of the games that I like from various different platforms and times.
Bubble Bobble (Master System)
Rainbow Islands (ZX Spectrum)
Grand Theft Auto III (PC)
Columns (Mega Drive)
Lemmings (Amiga)
Fallout 4 (XBox)
Devastation (PC)
World of Warcraft (PC)
Star Trek Online (PC)
Starfield (XBox)
Streets of Rage 2 (Mega Drive)
Chubby Gristle (ZX Spectrum)
Mafia (PC)
Star Trek: Deep Space 9: The Fallen (PC)
The Elder Scrolls IV: Oblivion (PC)
No Man's Sky (XBox)
Aztec Adventure (Master System)
Star Trek: Elite Force II (PC)
The Sims (PC)
Minecraft (PC)
How To Be A Complete Bastard (ZX Spectrum)
Alex Kidd in Miracle World (Master System)
Streets of Rage 4 (XBox)
Prince of Persia (Master System)
Worms (Amiga)
Grand Theft Auto Vice City (PC)
Alex Kidd in Shinobi World (Master System)
Tempest (Amstrad CPC)
Defender (Arcade)
Glass (ZX Spectrum)
Journey's End (ZX Spectrum)
The Elder Scrolls V: Skyrim (PC)
Sonic Chaos (Master System)
Mazogs (ZX81)
SoloTrek II (Amiga)
Postal 2 (PC)
180! (ZX Spectrum)
Populous (Master System)
Elite (ZX Spectrum)
Bomb Jack (ZX Spectrum)
Galaga (Arcade)
Virtua Racing (Mega Drive)
Action Fighter (Master System)
Alien Storm (Mega Drive)
Fable 2 (XBox)
Xenon 2 (Amiga)
Fallout New Vegas (XBox)
Unreal (PC)
Dragon Crystal (Master System)
Magicland Dizzy (ZX Spectrum)
Knight Tyme (ZX Spectrum)
Rogue (MS-DOS)
R-Type (ZX Spectrum)