Browser based free games
Play free and free-to-play games designed to be played direclty in a browser (this includes both browser-based games and flash games)
Here are some of the best browser games you can play directly online: MMORPGs, collectible card games, strategy games and more. Browser games usually doesn't require nothing more than an updated browser (Chrome, Firefox, Edge, Opera, etc.) and are playable on any PC or Mac. Some of them may require a Flash plugin.
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Beijing Hidden Objects
puzzle / hidden object
Zygomatic

Cyberpunk Dreams
RPG
Late Night Games

Quick Fire Pool Instant
action
Miniclip

Strip Blackjack 3310
card game / strip poker
GGBot

Circus Hidden Objects
puzzle / hidden object
Zygomatic

Dead Estate Classic
shooter / shoot 'em up
Milkbar Lads

Mega victory! Sexy rock, paper, scissors
puzzle
Cleesh Haze

Strip a Girlfriend!
puzzle
Empty Set

There is no game
puzzle
Draw Me A Pixel

Daily Crossword
puzzle
zygomatic

FARA
RPG / roguelike
Brian Is Creative

Japan Castle Mahjong
strategy / mahjong
zygomatic

Booty Calls
adventure / tile-matching
3X Entertainment Limited

Forever Space
adventure / point & click
Pinhead Games

Initium
RPG / MMORPG
Universe Projects Inc

Pixel Town
strategy / city building
automatonvx

8-Bit Bayonetta
action / run and gun
PlatinumGames

Bejeweled REMAKE
puzzle / tile-matching
szewczyk

Bit Heroes
RPG / MMORPG
Juppiomenz

The Monster Inside
adventure / visual novel
Random Seed Games

atWar
strategy
atWar team