Help me "fix" my brother [gaming]

Hi everyone,
Before we begin, let me tell you story about myself. Believe it or not, I am gamer as long as I can remember, having clear memories of playing games on PC and PS1 (Warcraft 3, Crash Bandicoot, Alundra, Final Fantasy IX and many more) at age of 3. I loved to play with my brothers which were in teens back then and we were into gaming a lot, teaching each other tricks and stuff, great times that I like to look back at. Time passed and only one of my brothers was still interested in games. The fact that we still shared love for games really put us closer together,
But nothing lasts forever. As years went by, even he started to be less interested and slowly switched from "normal games" to mobile "pay or wait 2000 years" kind of games. When I realised what happened, I tried to pull my brother slowly away from these by offering to play games he liked before (even those I didn't like) but we usually didn't last long because he felt that the games were now hollow and couldn't keep him interested. I don't blame him, it happened to me few times, but then I always found some magical game that cured me and returned me to full gaming power. I started to think I lost him forever, but today he said out of nowhere that he feels like to play something unique/interesting, but doesn't know what.

This is the part where you come in. I'm looking games that are unique or interesting in some form:

• (Prefered option) LOCAL COOP games for PC (mine, should be able to run everything) and PS3
• SINGLE PLAYER games for Potato PC (really really low spec) and PS3

There are some restrictions and information:

• He understands only basic english and usually skips dialogs and cutscenes-> no story based games "without gameplay"
• He doesn't mind grinding
• He is completionist and finds additional gameplay for himself (like do all sidequests, beat the game with starting weapon only)
• Has no problem with oldschool games (cause he grew up on them, makes sense)
• It would be cool for single player games to have some kind of quest log or diary in case he gets lost to help me find the way
• Coop games prefered non-split screen

Games he likes: (J)RPGS, Dungeon Defenders, Diablo, Final Fantasy (not new ones), Sacred 2, Of Orcs and Men

I believe you'll surely find something great. All your suggestions are really appreciated.

PS:
I didn't want to share with you any games because I'm selfish idiot but I saw some "factory" icon next to my game and when I googled what that means it said "gib or consequences" , so I guess you are lucky (it's nothing special tho). Also sorry for that boring story.