- chess, go
- overcooked
- games like magic and hearthstone
- deckbuilding games like mystic vale (also on mobile)
- spyfall
- resistance/avalon (disclaimer: this loads over http; increased risk with password reuse)
- secret hitler
- coup (BGA)
- among us
- poker, i guess
- hanabi (hanabi.live, hanabi.cards or BGA)
- neptune's pride
- jackbox party pack (incl. quiplash)
- animal crossing
- codenames
- codenames green (like codenames, but works with fewer people/more balanced)
- keep talking and nobody explodes
- super mario party
- starcraft ii
- human fall flat/gang beasts/fall guys
- minecraft
- don't starve together
- tf2/overwatch
- halo (ahem)
- deep rock galactic
- golf with your friends
- tetris
- skribbl.io (pictionary, basically)
- drawbattle.io
- drawphone
- jigsawpuzzles.io
- scattergories
- fishbowl
- agar.io
- slither.io
- paper.io (not actually at paper.io)
- tournaments based on 2-player games
- typeracer.com
- netgames.io (down last i checked)