The SPNKR SSM Launcher is a player wielded, shoulder-mounted, rocket firing Weapon found in all three Marathon games. Often this weapon is found later on in the game, or occasionally in a secret area.



The SPNKR SSM Launcher is an extremely powerful weapon that can obliterate large groups of enemies at once. Additionally, this weapon is one of several that has no secondary fire or mode.

While in hand, both versions of the SPNKR SSM Launcher took up an extremely large amount of space from the player's viewport. The SPNKR-XP SSM Launcher of Marathon 2: Durandal and Marathon Infinity still took up a large portion of the player's viewport, less so than in Marathon.


The SPNKR SSM Launcher takes 3 seconds to reload, making it the slowest reloading weapon in all three Marathon games.

Vacuum and Underwater

The SPNKR SSM Launcher cannot be fired underwater or under vacuum conditions. Like the MA-75 Assault Rifle/Grenade Launcher, it can also be used to propel the player to otherwise out-of-reach places at the cost of heavy self injury. This technique is known as Grenade Hopping with the Assault Rifle, or Rocket Jumping with the SPNKR SSM Launcher.



"This shoulder mounted device fires short range surface to surface high-explosive mini-rockets. Rocket velocity is 110 meters/second with a range of 2500 meters. Rockets explode on impact with a blast radius of 10 meters."
- Marathon manual

"A self-important human once said "...sometimes a cigar is just a cigar." This may be so, but in the case of the <<rocket launcher>> you've got one majorly explosive cigar."
- Marathon 2 manual


  • An early Marathon beta gave the rocket launcher the designation "AK.01".
  • The weapon's name is an abbreviation for the word "Spanker".
  • The rocket launcher in Halo is a reference to the SPNKR, and is even called "SPNKr" (which appears to be its manufacturer).