Here are some cool games that I've found that you can play on your browser. Plus some browser eye gazers and stress relievers
Thisissand - Website where you can create art through dropping sand grains.
Koalas to the Max - Satisfying eye gaze game (you can put your own images in after the / in the url)
White Enamel - Interactive point-click browser game set in a mental asylum
Little Alchemy - Combine materials to create objects!
Little Alchemy 2 - Sequel to Little Alchemy
Doll Divine - Site that hosts a ton of dress-up/create an avatar/doll games
The Zen Zone - Relaxing zen mini-games
Meiker.io - Avatar creator games
Azaleas Dolls - Doll dress-up games
Dress Up games - Dress up games collection
Itch.io - Site to play and download numerous indie games (both free and payed)
Pixel Planet Generator - Downloadable Pixel Planet Creator
Orb Farm - Care and manage for your virtual pixel aquatic ecosystem
Emulators for consoles (read the install instructions from each site)
Dolphin Emulator - Emulator for the Wii and Gamecube
Duckstation - PS1 Emulator
MelonDS - DS Emulator
Citra - 3DS Emulator
Javatari - Online Atari 2600 Emulator
PCSX2 - PS2 Emulator
ProjectN64 - Nintendo64 Emulator
Sites that have ROMS or retro/abandonware games for download to use with emulators. These sites should be 100% safe (however you should still take the necessary precautions)
Vimm's Lair - Emulator/Rom Download Site (download rate can be very slow)
Old Games Download - Site that has a database of old abandonware games (70’s, 80’s, 90’s, early 00’s)
Games Nostalgia - Database of retro MS-DOS, Amiga and Windows 9x tiles abandonware and more!
My Abandonware - More downloadable abandonware
Hshop - Downloadable 3DS Content
/r/Roms Megathread - Database and Links of ROMS for various gaming software
Atarimania - Atari 2600 ROM Collection
Mariocube - Wii, Gamecube and DS Roms for Download
Ruffle - Flash Adobe Emulator
Dosgames - Collection of DOS games to download