I’m not sure if it should be #7GamesToKnowMe or #TenGamesToKnowMe, but either way here’s a list in rough chronological order.

Horace Goes Skiing
Prince of Persia
Sonic the Hedgehog
Civilisation
Doom etc., Quake etc. Half-Life etc.
StarCraft
Shenmue
World of Warcraft
WildStar
Final Fantasy XIV