For a suite like Microsoft’s classic Solitaire and similar games, you can try Aisleriot Solitaire on Linux. It’s simple, has a bunch of card game variations, and works really well. Another solid option is GNOME Games, which includes classics like Minesweeper and Chess. If you’re using Linux, it should be easy to find in the software manager.
Windows, if you want the nostalgia of older games, you can also check out PySolFC—it’s open-source and has hundreds of card games in one. Works on Linux too!
If you’re into digital art or gaming aesthetics while killing time, you might want to check out cool themes like CSGO wallpapers for Android. I found some great options here. It’s a small way to stay connected to games when you’re on the go. Enjoy Phnom Penh.