Unreal Wasteland is the 20th level of Serious Sam 2, and the first level on the planet Kleer.
After defeating Prince Chan and obtaining his Medallion piece, Serious Sam is sent to the planet Kleer to obtain a medallion piece from Count Kleerofski. Sam teleports right in front of a few Kleer Skeletons who are using a Serious Sam doll as target practice. He then fights through the Wasteland, taking out everything in his way.
Eventually, he discovers a lava flow and a rocky platform floating nearby that'll let him follow the lava to the next part of the Wasteland. He hops aboard and rides the platform until it reaches a lava waterfall. He gets off of it and lands on solid ground. He follows the ground to a large arena-like area with four small buildings and one large building, all of them made out of brick. The center one has a XPML30 Rocket Launcher, which he picks up. Right after he picks it up, four enemy teleports appear in the other buildings. After killing all of the enemies teleported in, Sam runs to a set of doors past the buildings in order to reach the Doomed Canyon.
- As soon as you get to the second area, look to your left. You will see two steam vents. Jump on the one further away and it will lead you to a platform with a boulder on it. Walk up to the boulder and press “use”. The boulder will fall and plug up the vent closest to where the player entered the second area. Now, jump towards the vent you just used. If it's hit at the right angle, it will propel to the player to a platform that has a Extra Large Armor. Pick it up.
- As soon as you jump off the platform at the end of the lava ride and reach solid ground, turn and walk left until you hit a wall. Look down, and you'll see a ring of fire. Jump into it, and you'll be warped to a secret location that has three RB-45 Hand Grenade pickups and a Treasure Chest.
- Shooting the Serious Sam doll the Kleers were attacking will cause the player to take one point of damage every time it is shot.
- The ATV was shown at the end of this level.