Console-first development -for all the violence it has done to game design- has been a godsend in this department. I'm getting a huge amount of mileage out of my ~6-year-old gaming PC.
I know that you said that you're not going back to PC gaming, but I just have to recommend a few indie PC games that I've had a lot of fun playing with friends.
If you're ever looking for things to play with friends on the same screen, I can personally recommend Nidhogg, [0] TowerFall Ascension, [1] Monaco, [2] and the somewhat-recent Spelunky HD remake. [3] Also, the Let's Play folks [5] seem to play a new same- or split-screen co-op game once every other week or two.
[1] (A one-to-four-player single-screen acrobatic archery combat game. This one's a little hard to describe, but the 50% of the video on the Steam page that's actual gameplay gives you an okay idea of how it plays.) http://store.steampowered.com/app/251470/
[2] (A one-to-four-player single-screen strategy heist game with static levels, but semi-random enemy and resource placement) http://www.monacoismine.com/
[3] (A 2D-scrolling randomly-generated-dungeon exploration and exploitation game, that has a rather finely-tuned risk/reward mechanism, and a really high skill cap. [4] However, it's totally not required to get "good" at the game. Derping around with friends is rather chaotic and tons of fun.) http://www.spelunkyworld.com/whatis.html (Sadly, that page is not so useful for getting a sense of the game. The 2008 version of the game is freely available [and linked on that page], so you can play a single-player-only, less polished version of the HD remake.)
[4] That is to say, there are a bunch of systems in the game that can interact in many different ways. You have a much easier time with the game if you are able to figure out many of these interactions, but doing so is strictly optional. The game is hard, but always fair, and gets you back in the game quickly after you -inevitably- fail.
Console-first development -for all the violence it has done to game design- has been a godsend in this department. I'm getting a huge amount of mileage out of my ~6-year-old gaming PC.
I know that you said that you're not going back to PC gaming, but I just have to recommend a few indie PC games that I've had a lot of fun playing with friends.
If you're ever looking for things to play with friends on the same screen, I can personally recommend Nidhogg, [0] TowerFall Ascension, [1] Monaco, [2] and the somewhat-recent Spelunky HD remake. [3] Also, the Let's Play folks [5] seem to play a new same- or split-screen co-op game once every other week or two.
[0] (A two-player, tightly-designed, reasonably deep, fast-paced side-scrolling sword fighting game) http://www.nidhogggame.com/
[1] (A one-to-four-player single-screen acrobatic archery combat game. This one's a little hard to describe, but the 50% of the video on the Steam page that's actual gameplay gives you an okay idea of how it plays.) http://store.steampowered.com/app/251470/
[2] (A one-to-four-player single-screen strategy heist game with static levels, but semi-random enemy and resource placement) http://www.monacoismine.com/
[3] (A 2D-scrolling randomly-generated-dungeon exploration and exploitation game, that has a rather finely-tuned risk/reward mechanism, and a really high skill cap. [4] However, it's totally not required to get "good" at the game. Derping around with friends is rather chaotic and tons of fun.) http://www.spelunkyworld.com/whatis.html (Sadly, that page is not so useful for getting a sense of the game. The 2008 version of the game is freely available [and linked on that page], so you can play a single-player-only, less polished version of the HD remake.)
[4] That is to say, there are a bunch of systems in the game that can interact in many different ways. You have a much easier time with the game if you are able to figure out many of these interactions, but doing so is strictly optional. The game is hard, but always fair, and gets you back in the game quickly after you -inevitably- fail.
[5] https://www.youtube.com/user/LetsPlay/videos