What is your favorite game?

From what I got, Killing Floor 1. It was also my first game on Steam.

Monster Rancher Battle Card Episode II

I love tcgs and I love the Monster Rancher games (except Evo).

Princess.Loot.Pixel.Again

(\Kappa/)

I'm going to go with KOTOR. Story was fantastic and gave a good amount of choices to the player.

Betrayal at Krondor and Might & Magic 6. I spent lots of hours playing those 2 games.

Guild Wars 1, +9500h on it... I did Great friends and were very good times.

Battlefield 2142

counter strike , any version

One more vote for Dark Souls. And it's not even my kind of game usually, I'm more of a turn-based/strategy games type of guy.

H1Z1 Just Survive <3

Original Doom! :3

Batman

Too many to count, but the one that comes to mind is Infamous 2

i love so many games
the most recent one is Dark Souls 3 and Overwatch

My favourite game is either Dark Souls or Riven: The Sequel to Myst depending on my mood.

Other honorable mentions go to: Bloodborne, The Witness, ICO, System Shock 2, Thumper, Demon's Souls, The Longest Journey, Dwarf Fortress, Miasmata.

Talos Principle

Silent Hill 2

I don't have an all time favorite game but one that sticks out when I think of just a favorite would be Middle Earth: Shadow of Mordor.

One favorite game? ONE? Not possible! I have to give favorites by genre! Some of these cannot be found on Steam

Time Management: Delicious series
Strategy: Civilization II (older) or Warlock: Master of the Arcane (semi-recent)
Tycoon: Zoo Tycoon Complete Collection ~I designed for the community for 6 years!)
Action-adventure: Tomb Raider (2013), followed by the Batman:Arkham games and ENSLAVED: Odyssey to the West
Free-movement 3D Adventure: The Vanishing of Ethan Carter
Point-n-Click: Cognition or The Longest Journey
Casual Adventure: Tormentum: Dark Sorrow
Side-scrolling adventure: Valiant Hearts: The Great War
Hidden Object: Phantasmat or Chimeras: Tune of Revenge
Puzzle-adventure: The Swapper, then The Talos Principle
Matching-strategy-puzzle: FaeVerse Alchemy and Triple Town
Mosty text-based: ZafeHouse Diaries
Word: Toss-up between Highrise Heroes and Letter Quest: Grimm's Journey
Card: Faerie Solitare Dire (not released yet ;D) and Fairway Solitaire
Match 3: PuzzleQuest (on Steam) or Cave Quest
Strategy-SIM: Chocolatier 2: Secret Ingredients
Build-a-tribe: Gemini Lost
RPG: Star Ocean 3: Till the End of Time (PS2)
RPG-Card: Runespell Overture
3D Platformer: Banjo Tooie (N64) or Donkey Kong (N64)
2.5D Platformer: Max:The Curse of Brotherhood
Side-scrolling Platformer: Stick it to the Man!, Nihilumbra or Deadlight
Arcade game to relax to: Cat Goes Fishing
Amanita (yes, they get their own genre!): Botanicula
Telltale: The Walking Dead Season 1 and Tales from the Borderlands
LEGO: Both Harry Potter games

If you hadn't figured it out by now, I L-O-V-E my games! ♥♥♥

star wars pod racing

Freecell Solitaire ;-P
As far as Steam games go, at least of the games in my library I've played so far, maybe One Finger Death Punch. I may change my mind later though.

Trackmania

View attached image.

I can't pick just one :( Not possible, there are too many good games out there.

Grand Strategy: Europa Universalis IV (with a honourable mentions going to Victoria 2 & Civilization II)
RTS: Majesty: The Fantasy Kingdom Sim
Platformer: Super Metroid
CRPG: Planescape: Torment (with honourable mentions going to Pillars of Eternity, Tyranny & Ultima 7)
Adventure/puzzle: The Talos Principle (with honourable mentions going to Riven, Sherlock Holmes vs. Jack the Ripper & The Dig)
Tactics: Jagged Alliance 2
Shooters: System Shock 2
Stealth: Thief: The Dark Project (with honourable mentions going out to Thief 2 & 3)
Racing: Mario Kart: Double Dash
Party Games: Bomerman 93