Legend of Zelda following Twilight Princess.
TimeSplitters following future perfect.
XIII following… the ending of XIII cliffhanger.
Half Life following HL2 E2 cliffhanger… or L4D3… or Portal 3…
Overwatch following Jeff Kaplan
Cave Story following Cave Story 1
Heroic launcher is pretty good alternative. It has a feature to “automatically add to steam” as well that should make a link in the big picture steam deck mode so you don’t have to drop to desktop mode to make them work as well.