I've not come across anything that I would call 'epic' from a minimal set of rules, but some of my favourites that you can throw in your bag, teach in 2 minutes and play in 15:

Welcome to the Dungeon/Dungeon of Mandom - https://boardgamegeek.com/boardgame/150312/welcome-dungeon

Love Letter - https://boardgamegeek.com/boardgame/129622/love-letter

Hanabi - https://boardgamegeek.com/boardgame/98778/hanabi

No Thanks - https://boardgamegeek.com/boardgame/12942/no-thanks

Archaeology - https://boardgamegeek.com/boardgame/191300/archaeology-new-e...

Linko/Abluxxen - https://boardgamegeek.com/boardgame/153065/linko