What game never loses it's appeal to you no matter how many times you play it? (giveaway inside)

Final Fantasy 7, 8 and 9
Kingdom Hearts 2

M&B Warband
The Witcher 3
Rocket League

Civ 2 & 5
Europa Universalis 4
Super Metroid
Dawn of War (Skirmish)
Tetris
Bomberman
Mario kart series (not including 64, which is the only one I'm not a big fan of)
Majesty: The Fantasy Kingdom Sim

All of the borderlands games cause they all have such interesting worlds and fun playable characters
World of warcraft too, so many character and race combos, hard to run out of stuff to do

Rocket League, Towerfall, Terraria.

None for me for the past 2 years :(
Before that it was whatever MMO I was playing or Minecraft.

Bioshock
Pokemon
The Last of Us
Skyrim
ESO
Vindictus
Unturned

Probably some others, but I forgot.

Darkest Dungeon :3<
Dark Souls III is likely to fit here as well, but I've only just bought it recently so I'm still on first playthrough

GTA: San Andreas and MTA ;)
M&B Warband ( I play with fire & sword now though)
Skyrim! (Soon on microwaves!)
Civilization V
Stellaris
Terraria
Sadly, LoL. (Do not play this salty game)

Stronghold Crusader 1

Ratchet and Clank.
I played the trilogy and Ratchet Gladiator/Deadlocked countless times on PS2, and now that I found the HD trilogy on PS3, the Ratchet marathon starts anew. I enjoyed very much Tools of Destruction and A Crack in Time on PS3, and Size Matters and Secret Agent Clank on PSP. Haven't played the others yet.
Pretty fun, totally cute, a decent gameplay. I loved it all.

On PS1, I played MediEvil and Tomba (Tombi in Europe) at the very least 5 times and I totally could play them again. The soundtrack, the atmosphere and Sir Daniel Fortesque for the first, the WTF for the second.

On PC, I'll go with Fable. Probably the only PC game I played again and again and again.

Rocket League
SteamWorld Heist
and Dota of course

Battlefield bad company 2 (the amount I've played this... not healthy) :(
Awesomenauts

World of Tanks
Play it for almost 5 Years each day with 1 Year paused in this 1 Year i start to collect Steam Games now reached over 4600 Games :(

I love replaying the Mega Man games periodically.

I'm always trying to play new things, but there are a couple of games that I keep returning to play. Mostly if they have a new release on a new platform. From oldest to (kinda) newest:

• Impossible Mission (C64) I've played all iterations of the game. I often beat it once a year.
• Another World/Out of this World (same as above)
• Classic LucasArts adventure games. (It's funny when you can't remember the solution for a puzzle that you can swear you solved once)
• Elder Scrolls games (new and old. Still hoping for a patch or upgrade for the first two)

Terraria.

Warband, Bad Company 2 and Space Engineers.

Half-Life
Left 4 Dead
Left 4 Dead 2
Counter-Strike
Grand Theft Auto: Vice City
Grand Theft Auto: San Andreas

Front Mission 3.

The story is total wank that I try so hard to ignore because the sheer depth of meaningful Mecha customisation available is everything I want from a game.

Some games have a huge range of options when building or designing your character, but all too often, they don't change anything. With Front Mission 3, each part ( arm, leg, torso, etc ) changes the chance to activate a special skill, and each weapon ( shotgun, MG, missile, rifle, FIST! ) leads to such a different playstyle.

Ideally, a FM3 remake, with non of the story is what I want.

Games I go back to, over, and over, and over:

• Diablo 2 LOD (and to a lesser extent, Diablo 3)
• Neverwinter Nights (endless mods and persistent worlds)
• Counter-Strike
• Left 4 Dead 2
• Borderlands 1 & 2
• Dragon Age (and, to a lesser extent, its sequels)

Games I wish I could go back to, but the aforementioned suck up too much time:

• Age of Empires II
• Mount & Blade Warband
• Unreal Tournament 2K4
• Divinity: Original Sin
• Baldur's Gate series
• Mass Effect series
• Stardew Valley

Games I spend entirely too much time in considering I'd rather be playing those mentioned above:

• League of Legends (I plan to quite once I reach Gold level)
• Star Wars: Knights of the Old Republic (I plan to quit, soon)
• Cat Goes Fishing (this game is just stupidly addictive)

Dota 2
Most Open World games

Supaplex

X-Com Series !