How about
Valve if we're talking western publishers?
I mean most PC gamers in the world have Steam already so they're not an unknown, and they have a decent handful of highly acclaimed games with memorable characters and items that I think would translate pretty well:
-
Team Fortress 2 gives you NINE completely unique classes straight off the bat; Scout, Soldier, Pyro, Demoman, Heavy, Engineer, Medic, Sniper and Spy.
Scout is fast and has extra jumps. Capable of stunning opponents with a ball and is a rush down archetype.
Soldier can rocket jump up, and is great at both long range and short range.
Pyro has a jetpack and is a short range fighter that deals fire damage...a LOT of fire damage as well as being able to deflect projectiles.
Demoman fires explosives and carries a haunted blade around with him making him very good in the midrange.
Heavy is slow...but rips through enemies easily.
Engineer is a trap style fighter who can set up strategic sentry gun placements to aid him in battle.
Medic has the ability to heal team mates in team battles but is also equipped with a long range crossbow and a short range bone saw to slice and dice
Sniper is your extremely long range specialist and capable of causing critical damage if he hits the opponents head
Spy can momentarily disappear and deals huge damage if he hits you in the back.
-
Half Life's Gordan Freeman may be one of the most famous western video game characters of all time. With access to an anti gravity gun and his trademark crowbar weapon, he's ready to crack some skulls. Also from Half Life you could include the deutagonist of Alyx Vance. Dog, Alyx's hulking robot Dog would make for a great Final Smash for her.
-Chell from
Portal would have a moveset centered around using portals and setting traps allowing her to move freely across the map. You also have ATLAS and P-body as options for fun robotic playable characters and of course GLaDOS as a boss battle. Companion Cube of course needs to be an item, as does Wheatley and the Sentry Turrets.
-
Left 4 Dead gives you a whole heap of unique infected fighters such as the juggernaut Tank, the speedy Hunter or the trapping Spitter that could be a ton of fun PLUS badass survivors like Bill Overbeck(also of Dead by Daylight fame), the 'hates everything but vests' asshole that is Francis, the other giant asshole that is Nick, the cute nerd girl Zoey, the snarky Rochelle, the optimistic Louis, the always foodcentric Coach and the incredibly amusing Ellis.
-
DOTA offers so many unique heroes you could easily make an entire varied roster game out of JUST them. Pick a handful of any of them;
Seriously there's dozens of options.
I think Valve have enough IPs to start the whole schabang off, and through Steam they've made so many connections they could easily expand this roster with third party support, most of whom do often add in Valve eastereggs such as Payday 2 having Engineer's sentry gun, Saints Row the Third having giant Team Fortress 2 mask heads and Dead by Daylight including Bill as a playable survivor. The sky really would be the limit.
...of course Valve time is still a thing and we'd only ever the initial game and a sequel since Valve can't count to three