Shit is that Opposing Force?

I think you got it.

I'll call Blue Shift just in case.

Nope, no one got it yet.

I want an exact name btw - not necessarily the full full name, but just so that it is not confused with other games of similar names (of course there could always be another greening ^_^ )

Well It's not this but:

Half life 1.

Nope, you're all close, though some closer than others....

Seeing as how those were all close, but not it... Half-Life: Deathmatch? I never played it, but it seems to fit in with the group.

Team fortress 1/Classic Team Fortress

Running out of Half Life 1 based games... (and those graphics definitely are before Half Life 2.)

EDIT: Counter-Strike: Condition Zero?
EDIT2: HUD seems to be an exact match

CS:CZ it is! Your turn!

Shit I knew I had seen that before but just didn't think it was CS:CZ. Only played it once. That game was TERRIBLE.

Was just going through this. Only other half life 1 based game was Ricochet.

Now to find another game to post...

EDIT:
This will do.

Dungeon siege!

Yep, welcome to the party.

(I think this is your first post/win in this forum. Feel free to correct me.)

Not my first post, but it is my first win on this game!

I'll be amazed if anyone recognises the game I'm posting, I actually still own a copy of it. This one is difficult! Good luck

Omikron: The Nomad Soul?

Don't know which game it is, but it's certainly not Omikron.