My favorite free PC game would be DOTA 2. You can get it for free via steam games, it's actually among the top games played thru steam.
I got completely addicted with it for about 3 years as it's replayability and room to master is just very impressive.
Topic: What is your favorite free PC game? - page 9. (Read 5237 times)
What is your favorite free PC game?
Dota 2 or dota 1
Dota 2 baby, #1 Invoker 
Pes 2017,2018
Dota 2
Team fortress2
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Dota 2
Team fortress2
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LEAGUE OF LEGENDS of course.. Then shift to crossfire if cant even win to enemies.. Haha
PES 2018 (Free download link in google)
DOTA2
Warcraft
Paladins
DOTA2
Warcraft
Paladins
Solitaire and Zuma. I still enjoy those games.
i like Zuma and Candy crash 
My favorite fee pc game GTA
one word "DOTA"
my favorite free PC game is dota2 as you can see dota2 become one of the most popular game in the world almost all game lovers must have tried dota2.
Assassin's Creeds are just works of art! I love all these games!! and GTA of course
i like resident evil 2 and call of duty.
candy crash
doodle jump!
doodle jump!
my favorite game on pc is a euro truck simulator with nice graphics made me feel like riding a real truck
League of Legend is my favorite free PC game 
Fortnite, I think they're doing a great job for a free game, with a lot of updates and a huge community. They're destroying PUBG.
GTA for pc that's amazing
Dota and mine craft love those games so much
Dota and mine craft love those games so much
Saints Row! the best game I've ever played.
san andreas! the game of the century!!
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