In the Quake series, a Rocket Jump is using the explosion from a Rocket combined with a jump to reach high places. While this can injure the player, the distance covered by performing such a jump often can be rewarding for those strategic enough to manage their health. Since this game, Rocket Jumping has become a staple move of numerous FPS titles and is often heavily utilized in Multiplayer sessions. A Grenade Jump is similar to this skill, but is performed with a Grenade Launcher instead of a Rocket Launcher
Types of Rocket Jumps
Simply look at the ground, then jump and fire the Rocket Launcher. Running backwards while doing it gives you more speed.
In the air, fire at a wall while looking down at it.
Grenade & Rocket Jump
Combining the Rocket Jump with the Grenade Jump will send players flying much further than if either was isolated, though the player will be sacrificing most of their health if they have no Armor or Megahealth.
Quad Damage Rocket Jump
Rocket jumping while under the effects of a Quad Damage will triple the amount of self-damage that the player takes & send them flying extreme distances. Note that without Armor or the Megahealth, it will require the player to be hit by the edge of the Blast Radius.
In Quake, Rocket Jumping is an exploit. While nothing in the game was designed to require Rocket Jumping, the community found it beneficial to travel faster throughout the levels. This skill quickly became a staple of Speedrunning and Deathmatches.
- Traveling from the lower floor to the upper floor of the Multi-Level Hallway.
- Bypassing the 2 Moving Floors of the Shootable Button Room.
- Getting to the Red Armor and 100 Health of the Lava Bridge Room without having to press the Button that slides the Bridge over the Lava.
- Traveling from the hill of the Pit Room to either side of the second floor, or from one side of the second floor to the other.
- Getting to the second floor platform of the Large Water Room from the first floor.
- Reaching the Red Armor of the Main Staircase Room from the middle floor of the staircase.
- Ascending from the first to second floor, or second to third floor, of the Central Room without usage of the Teleporters.
- Reaching the third-floor alcove of the Central Room from any point of the Central Room beyond the staircase.
- Bypassing the stairs of the Small Staircase Room
- Bypassing the stairs of the Large Staircase Room.
- Traveling from the first floor to the second floor platform of the Central Room by Rocket Jumping to the Teleporter in the middle of the room, then again from the Teleporter to the second floor platform.
- Q2DM1: The Edge: Getting to the Grenade Launcher.
- Some of the items that are very hard to reach especially the obsolescent have be destroyed, Rocket jump is often the best way getting there.
- In Unit 7, level 5 - Launch Command, there is a secret area that requires Rocket jump to reach. Once you succeed, there is a HUD message says "You crazy Rocket Jumper!"
At higher skill levels, bots can rocket jump. Q3DM15: Demon Keep: At the battle suit area, rocket jumping is required to reach and use the bouncepad at the middle to collect heavy armor and BFG10k.
- Doom is the oldest FPS to have this mechanic, though only the Wall Jumping variant, since Doom lacked various features needed for proper Rocket Jumps such as mouselook and the ability to jump. In E3M6: Mt. Erebus of that game, the player is expected to Wall Jump if they wish to reach the exit to E3M9: Warrens.
- According to John Romero, id Software didn't know about Rocket Jumping when designing Quake, and therefore designed maps that were not intended to be used with Rocket Jumping. Once id learned of it, they began incorporating it into their maps and made sure that a player couldn't bypass too much of a map while using it. 
- John Cash, one of the programmers for the original Quake, is the person that originally discovered the Rocket Jump. Tim Willits and Cash were in a Deathmatch game on Introduction. Cash had collected some Armor, but managed to get himself trapped in a corner with death being likely. He decided to fire the Rocket Launcher at the ground to take out his combatants with him, only to fly into the air and land behind his opponents. 
- Despite the term, this tactic can be performed by Grenade Launcher in Quake 2 and 3, and BFG10K in Quake 3.
- ↑ http://www.rome.ro/lee_killough/history/doomqna.shtml
- ↑ http://gamingbolt.com/id-software-exclusive-interview-with-tim-willitis-creative-director-on-rage