Outside

Tonight We Riot

It's a very short arcade game, but the devs are comrades and should be supported.

Wolfenstein is the classic nazi killing game but you play as an Amerikkkan

Partisans 1941. It's a stealth real time tactical game that takes place behind German lines in the USSR during Operation Barbarossa. You play as the Soviets, obviously.

There's resource management and RPG elements, story is so far so good. I stopped playing because there's a new path of exile season lol.

Are we including Tabletop games? Because The Hammer and The Stake is an rpg about fighting literal capitalist vampires in 1920s Hungary

Hearts of Iron 4

Red Alert

Red Faction Guerilla, though I guess you're mostly killing Neolibs being imperialist.

Wolfenstein of course. I actually like the 2000s reboot where you killed occult Nazis.

The Saboteur as others have said is great. Irish bombmaker killing Nazis. It's impossible to describe how fun that game is. You run around with a beautiful British spy in fast 1940s cars and your hideout is literally the Moulin Rouge. As you "liberate" districts they turn coloured. It ain't accurate but you can justify it as turning parts of Paris into "no-go" zones for the Nazis.

Ambition: A minuet in power, is a semi visual novel that lets you play as a young woman adrift in Paris intrigue in the 1790s, and lets you take down the king and hook up with Saint-Just as a romance option.

Just cause lets you take down the fash, though it's mostly cold war fash.

There's an old Hex game I recall that takes place in the Russian Civil War, in case you want to kill black hundreds instead of standard Nazis.

Victoria 3 lets you do communist revolutions, and if you're doing world conquering, you'll undoubtedly fight a bunch of literal fascist countries.

Though I mean, the Paradox game doing the most literal playing as Soviets and killing Nazis would be Hearts of Iron.

You need to give The Saboteur a play. One of the forgotten games that personally I thought was great but sold like crap.

Hammer & Sickle is a relatively obscure Russian turn-based tactics game, sort of a quasi-sequel to Silent Storm, which is somewhat better known.

It's 1949, you're a Soviet agent infiltrating into the Allied Occupation Zone and stumbling onto a neo-fascist plot to do a bunch of false-flag attacks and start WW3. It's pretty cool, but kind of janky and obtuse, and needs a bunch of mods to even run on a modern operating system.

Cod 2 soviet campaign

Not cod 1 or cod 5

Red Orchestra and its sequel

Call of Duty: World at War

Though, unfortunately it's only half the game

The other half is fighting the Japanese in the Pacific theater

I honestly can't think of anything else off the top of my head

Men of War

Red Faction Guerilla

I think you can do it in Dwarf Fortress, kind of

You can beat the tar out of Measurehead as a communard in Disco Elysium

Command and Conquer: Red Alert.

I sometimes play ARMA3 with a group that portrays various eastern bloc forces in cold war scenarios against burderland and it's cronies.

Partisans 1941, real time tactics game about german invasion of the ussr.

Merits a double post: Hunting Yankee, from our friends in the DPRK. Can't get any more on-the-nose than that.

caves of qud

Steel Division 2 is an RTS on a large scale level with combined arms mechanics and some deckbuilding, just only play Soviet divisions and enjoy the Nazi fragging.

TERFENSTEIN 3D

I enjoyed Blade of Agony recently