Ya on the pc its great, lots of crazy mods to fool around with. I am very glad something like this is heading for the consoles, its about time. Now if tiger woods would get a course maker so that someone could make there own golf courses that would be sweet.

Counter-Strike and Team Fortress started out as mods and later became very popular. I think Team Fortress started on the Unreal Engine, then became TFC on the Half-Life engine (which I think stemmed from a Quake engine) and is now coming as Team Fortress 2 on the Source engine in Half-Life 2: Orange Box.

Some mods can almost feel like a full game rather than a mod. Take the Source Engine mod, Insurgency for example. The Insurgency Mod, while lacking some polish and general balance, is a complete Source Engine conversion and they created just about everything in it from scratch. Another Source mod, Black Mesa, is a mod being made to completly remake the Half-Life experience on the Source Engine and that is going to be a complete conversion as well as they're making just about everything from scratch. A little history on that, Valve released Half-Life: Source, which turned out to essentially be Half-Life 1.5 with some Source Engine effects and some polished graphics, but that was it (and the reason the Black Mesa mod is being made).

Halo based on unreal Engine ?

Thats new to me.

As far as i remember, Bungie created their own engine.

Can you give a source ?

Hmm, then it appears that I could be wrong. Stay tuned, lol. I know that Halo 2 and 3 are in-house, but I swear I heard that the first one was on the unreal engine.

Nevermind then. 

Wait, isn't this game eventually coming to the 360 as well?

mods are pretty awesome. when u look at some of them you wonder if they are actual still the same game.

the other thing about mods is that they can often fix broken games. the fans of a gmae will actually fix broken engines and bugs and add quests and what not. you know how oblivion is big on 360 and ps3? well its gigantic on pc cause of mods. users have added so much more to that already too big game.

yeah it is coming on Xbox360
but when u heard this guy, there is simply no reason to wait ...

It doesn't matter what he's saying now. He wants the game to sell on the PS3. It's like how Sega had glowing things to say about the PS3 when VF5 was released and now they talk about how the 360 is getting the best version of the game.

b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0bby booby

 I've heard stuff about Sega being kind of worried about trying to keep the popularity of their arcade unit in Japan. That's what I've heard at least, but whatever, I haven't been to an arcade in a VERY long time. 

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A good game where user mods are very nice has to be Oblivion. God, the PC version has lots of things for it from texture packs, LOD landscape (you see landscape instead of fog), weather and lighting mods, and even ones that help for when quests break. A good example of that is when the Vampire cure quest breaks and you're stuck a vampire (happened to me), I grabbed a mod that had a vendor in Skingrad that would sell the potions to cure being a vampire.