A bad sequel to Quake? Definitely not!
Although it has basically nothing to do with the original Quake, except the Quad Damage, its still a very good FPS game in terms of graphics, audio and gameplay. The step in further technology from Quake to Quake 2, is almost as from Doom to Quake.
The graphics are really impressive, the monsters look great, and the added feature when you shoot the monster so he has less than 50% of its HP, he already has wounds and blood all over him, all the weapons and effects made by them and the behavior of the AI make this game look very real. Also the epic environments are astonishing.
Just like Quake 1, the game has a powerfully good audio, weapons sound powerful, enemies sound hostile and the soundtrack in the background this time really fits the atmosphere, unlike Quake 1 did.
The game has a very interesting single player campaign, where you can run from a level to the previous level if you want, similar to Half-Life, which is another thing which makes it look real. The campaign itself is huge, includes secrets in it as well and has objectives to complete in it, so this is already a very serious tactical first person shooter.
There are lots of types of enemies in the game, as well as a huge weapons arsenal and several capable items.
The game originally had a quite weak multiplayer deathmatch mode, but it was fixed with patches shortly after.
The most disappointing thing in the game has to be that it actually isn't a sequel to Quake, and it may even be that we will never even have one.
But that's not a problem by itself to be honest, in fact, this is my only serious complaint about this game, other than that, the game is very good.
The Bottom Line
This game may not be a Quake sequel, but it is good enough to be one. Definitely worth playing. The game did show itself like a Quake game should, by bringing new cool ideas to the table, which influenced a lot of game developers later.