Here's a few of the games that I can always go back to:
Resident Evil 5,
What about you? :)
* Please try a lower page number.
* Please enter only numbers.
Streets of rage two
Zelda Link to the past
Zelda Links awakening
Super robot taisen og saga endless frontier
Any Street fighter
Final fantasy 7 and 8
Shining force 2
Secret of mana
can't really think of anything this gen that i have finished more than once
Jet Set Radio
Sega rally 1 and 2 (not the crappy xbox one)
virtua Cop 1 and 2
house of the dead 1 2 and 3
Spawn in the demons hand
Shenmue 1 and 2
Halo: Reach, not really much to do but I keep going back and playing to it for some reason.
cod4..goldeneye on the n64..diddy kong racing..sega rally on saturn..zelda ocarina of time..resident evil 1 on ps..turok just for the weapon that made the dinosaurs head explode..cerebal bore lol
Minecraft! Now that never gets boring
Left 4 Dead
So far Fallout and Fallout; New Vegas. Going to start over again with Skyrim at somepoint. Will probably play Mass Effect 3 again when the extended DLC comes out.
One of the only games that lasted past a single play through is Trials HD, and now Trials evo :).
I played some MP titles after finishing the campaign but beyond that I generally don't go back to games I have finished.
Halo Reach online.
I could spend months away from it but I always end u going back for a good session.