This is the planned SLS Block 1b version of the rocket, which is currently under development but it scheduled to make it's debut during the Artemis IV mission in 2026 or 2027. It features an upgraded Exploration Upper Stage, or EUS for short. It also features a Co-manifest capability for medium and large payloads, with the medium variant pictured here. Links to the other variants are:

Large Co-manifest:
No Co-manifest:


The Space Launch System (SLS) is a powerful rocket developed by NASA that is designed to launch payloads into space, including crewed missions to the Moon, Mars, and beyond. The SLS is an expendable rocket, which means that it is used once and then discarded after a single launch.

The SLS consists of a core stage, which is powered by four RS-25 engines, and two solid rocket boosters. The core stage is the main part of the rocket, and it contains the fuel and other systems needed to power the rocket into space. The solid rocket boosters provide additional thrust at liftoff and are jettisoned from the rocket once their fuel is depleted. The SLS is capable of carrying a payload of up to 130 metric tons to low Earth orbit, making it one of the most powerful rockets in operation today.

The SLS has undergone several design changes and upgrades since its development began in the 2010s, and it is currently being developed as part of NASA's Artemis program, which aims to return humans to the Moon in the coming decades. The first test flight of the SLS happened in November of 2022, and it is expected to play a key role in future crewed missions to deep space destinations.


  • Created On: iOS
  • Game Version: 0.9.926.0
  • Price: $156,723k
  • Number of Parts: 747
  • Dimensions: 164 m x 15 m x 24 m


  • Total Delta V: 11.1km/s
  • Total Thrust: 73.3MN
  • Engines: 35
  • Wet Mass: 4.27E+6kg
  • Dry Mass: 5.01E+5kg


Stage Engines Delta V Thrust Burn Mass
1 6 5.3km/s 62.3MN 5.0m 4.27E+6kg
2 0 0m/s 0N 0s 2.87E+6kg
4 0 0m/s 0N 0s 2.85E+6kg
7 8 3.1km/s 4.8MN 7.6m 5.15E+5kg
10 9 2.7km/s 544kN 6.8m 1.28E+5kg


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