Good Steam Games?

Miscreated is a pretty fun game

Steam games: pubg, gmod, tf2, slime rancher

Garrys mod
Arx fatalis
Black squad
Life is strange
Mass effect (1-3)

Garry's Mod also you can try killing floor 2

Garry's Mod, Arma 3, payday 2

A good game, that it's not advertised, is Redeemer. It was released on 1/8/2017 from a Russian company and remind a bit diablo. Very action-paced, lot's of blood though so check the trailer and gameplay before add it in your list

Lost Castel is amazing

It depends on what you want lol. If you like strategies games then coh2, men of war, steel division and so on.

• Half-Life 2
  
• Synergy
  
• Garry's Mod
  
• Counter-Strike: Source
  
• Portal 2
  
• Terraria
  
• Sven Coop
  
• Team Fortress 2
  
• STEINS;GATE
  

Witcher 3, Skyrim, CSGO xd jk, GTA5 , Dead by daylight etc