Like more than one of them
6 games close to two or more of The Citadel, Euro Truck Simulator 2 and Left 4 Dead 2
Blood: Fresh Supply
The Citadel, but horror, and pixel art
Loved · 94%2.5D · Old SchoolAlso like Left 4 Dead 2
Drive Beyond Horizons
Euro Truck Simulator 2, but a survival game, and a third of the hours
Mixed · 78%Driving · Automobile SimAlso like Left 4 Dead 2
Blood: One Unit Whole Blood
The Citadel, but horror
Loved · 92%Old School · FPSAlso like Left 4 Dead 2
More like The Citadel
11 games closest to The Citadel of your picks
More like Euro Truck Simulator 2
2 games closest to Euro Truck Simulator 2 of your picks
Motor Town: Behind The Wheel
Much the same as Euro Truck Simulator 2
Loved · 94%Transportation · Driving
The Long Drive
Euro Truck Simulator 2, but a survival game, and a quarter of the hours
Liked · 88%Driving · Automobile Sim
More like Left 4 Dead 2
11 games closest to Left 4 Dead 2 of your picks
No More Room in Hell
Left 4 Dead 2, but free to play, and half the hours
Loved · 90%Zombies · Survival
Dead Island Definitive Edition
Left 4 Dead 2, but an action RPG, and open world
Liked · 82%Zombies · Survival
How this list is made
Each game is measured against each of your picks the way a games-like list measures it: the Steam community tags, Steam genres and IGDB themes they share, each counting for more the fewer games carry it. A game's place is how alike it is to your picks together, as a share of each pick's best match, so one alike to two of them comes before one alike to just one. It must be close to at least one of them, as close as it would have to be on that game's own list.
None of your picks is on the list, nor a second release of one, nor a game of their own series. Up to 30 games are shown. Under each name, the kinds it shares with the pick it is closest to, and how it differs from that pick.