What games have you played the most once in your life?

Hitman CD, Stalker all 3 parts several times, Cold 4 passed 2 times.
Usually I do not like anything (read, watch, play) 2 times, but these games are worth it.

Half-life, even flipped through the PS2 version

Fahrenheit ~ 6 times;
Alan Wake 4 times;
Full Throttle 7 times;
Silent Hill ~ 3 times;
Silent Hill 3 ~ 5 times;
Devil May Cry 3 ~ 10 times;
Portal ~ 20-25 times.

Rome total war, how many times did not even count. Of course, there is no single in it, or there are special goals, but from cover to cover I grabbed the map 3 times, and half times from 15 times. The most favorite game was played along and across)
GTA San Andreas, 5 times was accurate and I play periodically, but there is no longer enough patience to the end.
Zeus + Poseidon, from cover to cover 5 times, and in parts the same amount.
Red Alert from the second through add-on to uprising 5 times. Similarly with the tiberium saga, only the epilogue passed once and no longer put it.
The old man from the first through the brood var to the end of the second also 5 times.
Perhaps that's enough))

FF VII tried 4 times to pass accurately. Could never make it to the end.
The first Fallout was played 4-5 times, the second has never been completely mastered.
Deus Ex first time 3 on PC and 2 times on PS2.

Mass Effect 2 completed more than 20 times Resident evil 2,3 times 10

Max Payne 1-2

mass effect 2; resident evil 4,5; witcher, MGS

The first Assassin's creed has passed many times.
And most of all in life ... Maybe Mario?

Half-Life. If I am not mistaken, I went through 7-8 times.

Dark Messiah of Might & Magic
No One Lives Forever 1,2
Severance: Blade of Darkness
Fallout 2
Neverwinter Nights 2 with addon Mask of the Betrayer
Aliens Versus Predator 2
Arcanum
Star Wars: Knights of the Old Republic
Baldur's Gate 2: Shadows of Amn
Vampire : The Masquerade - Bloodlines

Dead Space 2 completed 5 times (at 3 difficulty levels and 2 times in New Game +).
3 times The Darkness II (just liked it ...)

Fallout 2 - more than two dozen times in 20 years for sure. With and without mods.

All parts of Dark Souls 5-6 times each. At the beginning, the originals a couple of times, until all the achievements are opened. Then with different mods. Dark Souls 3 played the most because there is more choice of mods on it. Cinders three times as the mod is updated, The Convergence times 2. Now in the process of Dark Souls 2 Ascended Mod.

Mass effect 1,2,3. Fay edge 1 to 3 parts, resident ive 1-2 parts, reident ive 5-6 parts I still go through.

Max Payne 1 and 2

Grand Theft Auto: San Andreas - Completed it 73 times, preparing for 74 approaches. (Complete completion 100%)

Left 4 dead

there was such a game Chameleon
and so on an old computer in the 2000s, in order to play some kind of game, you had to start this Chameleon first, because without this action there were terrible artifacts in the games, I don't know why

Completed 4 or more times:

Prince of Persia: The Two Thrones
The Witcher 2: Assassins of Kings
Grand Theft Auto: San Andreas
Need for Speed: Most Wanted
Everlasting Summer
Devil May Cry 4
Hidden Agenda
Total Overdose
Dark Souls III
Bloodborne
Just Cause