Games Like Spartan - Total Warrior (...@ Steam)

Are you more into Spartan Warrior gameplay or just the Spartan setting, no matter the genre etc.?

Ryse comes to mind.

Darksiders 1 & 2, but these are a bit far setting-wise.

I second the Darksiders recommendation. Total Warrior feels much like a slasher so basically any DMC-like game will suit you quite well, I think. You might want to check current Humble Bundle for Enslaved, for instance. You could try also Marlow Briggs and the Mask of Death - good reviews, cheap and was in PAYWUW bundle.

EDIT: If you don't mind slashing multiple foes at once with a single attack, you can also check Dynasty Warriors.
EDIT2: Sorry for the edits. Any moment sth new comes up my mind :D Viking: Battle for Asgard - that would be more appropriate in terms of both gameplay and setting. Maybe the old game, Rune would be good as well?
EDIT3: The last one for now, I promise :D Rise of the Argonauts. Btw, why Steam since Spartan is a PS2-only game? Can we recommend other platforms as well? I have some in mind that aren't available on PC :P

I never played this game, can you tell me what exactly are you searching for? Hack'n Slash, generally killing hordes of enemies, something else?

A game that i feel it's a "spiritual sucessor" to spartan total warior is viking battle for asgard by spiritual sucessor i mean it has a theme and the gameplay revolves killing lot of enemies in small battles ending the ACT with a huge battle.
Personally i think dynasty warriors is a much better hack'n'slash game and you should check it out, not only it has a Lot of content it's incredebly fun playing with 2 players (local co-op)
Ryse is a game that has a strong theme like Spartan total warriors however it's a small game and the combat is a misture os QTE and the simple light, heavy and block moveset