Let's talk about game! And since everyone in penana (I assume) is a writer, let's talk about the story/plot specifically.
Don't care about the gameplay or the platform, let's just focus on the story/plot.
Let me start.
These are my favorites games with story/plot that I like (or even love).
1. Final Fantasy series
Mainstream but hey, I dare anyone to say that FF stories are not epic. Here are some that I like; FF7 universe (from before crisis to dirge of cerberus), Tactic (psone, and advances. The psone had the best story of the three), FF8 (If you love romance you're gonna love this), FF9, FF13 (Return of lightning also),FF Type-0 (Dealt with very heavy themes).
2. Tactics Ogre series
My favorite medieval-setting rpg stories. From ogre battle snes to tactic ogre psp.
3. Shin Megami Tensei: Persona
Persona 1 and 2 are definitely the masterpieces that serves as the groundwork of the later games. I think persona 1 and 2 were actually horror-action (seinen), while 3 and 4 were more shonen-oriented. Each of them has their own distinct atmosphere which really couldn't be compared fairly.
4. Rune Factory series
Harvest Moon with swords and monsters. I might write a fanfic about this game soon.
5. Broken Sword
Awesome adventure game with riddles and puzzles stories. And some educational historical facts.
6. Silent Hill (I gonna write one about this most awesome horror game franchise of all time)
7. Tales of series (no words enough to describe how awesome the stories are)
There are just SOME of many games with story/plot that I like.
Now, tell me yours, while I get myself a nice cold drink!