"That honor goes to the gameplay throughout the first half of the expansion, which takes place in the Erebus Labs of the UAC facility. At a glance, it's the same basic concept as DOOM 3: starting in an archeological dig, you make your way through the complex, with demons teleporting in from every direction. However, little time goes by before new mechanics are introduced to keep things from feeling stale.

The first new addition is the 'grabber,' a weapon that will undoubtedly be compared to Half-Life 2's gravity gun. Taking advantage of DOOM 3's advanced physics, you can pick up many items (and even some small demons) and toss them around. Suddenly, you can grab fireballs out of the air and fling them back at enemies for one-shot kills, saving precious ammo in the process. Half-Life 2 may have done it first, but it's still a useful option to have in your arsenal."

"As an expansion pack, you'd expect Resurrection of Evil to look a lot like Doom 3. And it does. That's alright, though, considering Doom 3 is still one of the best-looking games around. As mentioned, the expansion spends more time in the archeological sites, which we didn't get to see enough of in the original. And even in the Mars base levels, the designers and artists have done a good job of differentiating this add-on from the base game. The new enemies and weapons are all just as realistically modeled and animated as those in Doom 3, again adding to the impressive quality of the visuals. As with the graphics, the sounds are almost all lifted straight from Doom 3-- though the new voice actors are good--and the new shotty packs a serious punch. Like its forebear, this expansion puts forth an exceptional audiovisual effort."