Whether you play alone or with friends, you should definitely give Monster Prom 2: Monster Camp a shot. You're guaranteed at least a couple of laughs for a while.
Infinite - Beyond the Mind is a very simplistic action platformer, but is still pretty fun to sit down and play. While it doesn't do anything particular ground breaking or unique, it's still worth a look.
While the game looks very pretty, Banner of the Maid, unfortunately, feels pretty generic. Unlike other games in this genre, the grinding isn't as fun as it should be considering its interesting gameplay mechanics.
Gal*Gun 2 doesn't really break any new ground and can feel a little easy. But its simple game play and goofy moments can make it deceptively addicting. An overall good time to be had.
Frostpunk is a highly addictive experience for fans of strategy and resource management games.
Dynasty Warriors 9 still takes a new and interesting turn that may be worth looking into if you've been away from the series for a while.
Dissidia: Final Fantasy NT feels limited since you'll have the most fun playing online. However, there's still plenty to unlock that,