ServerBuddy: Find Active Minecraft Servers
Wand | Make Gaming Magical
WorldGuessr - Play GeoGuessr for free
Source-code: https://github.com/codergautam/worldguessr
Racingdekomote/vermouth: A game and app launcher for Linux - native, Windows, and retro. KDE-first, lightweight, no frills
Trivia
Simulation
Emulation Revival - Xbox Dev Mode: Emulators, Apps & Game Ports
MelonLoader - Universal Mod Loader
Calagopus - Open-Source Game Server Management Panel
Source-code: https://github.com/calagopus/panel
Vim Royale
PlayNest – Connect Accounts, Track Games & View Stats
Educational
Word
CurseForge - Minecraft Mods & Modpacks
RedM
Arcade
Casual
Play4Row - Play Connect Four Online Free
RPG
Yo Printables - Unlimited Coloring Pages & Drawing Ideas
Dialed.gg Color Game — How Well Can You Remember Colors?
GamePuma.com - Free Online Games