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propulsion Tech Comparison

Improved Engines vs Ion Thrusters

Comparing the Improved Engines (Tier 1) and Ion Thrusters (Tier 2), both propulsion technologies in Starforge MMO. Use this to decide which to queue first when your research lab can only run one project at a time.

Research Comparison

AttributeImproved EnginesIon Thrusters
TierT1T2
Research time27
metal cost1,20010,000
crystal cost6005,000
gas cost2002,000
Effect+20% travel speed+25% -fuel consumption

▼ marks the lower resource / time cost. Cheaper isn't always better — weigh it against the effect each tech unlocks.

Improved Engines

Fleet travel speed +20%.

Ion Thrusters

High-efficiency ion drives reduce fuel consumption by 25% on all fleet movements.

Requires: propulsion 1

Which Should You Research First?

The Improved Engines is the lower-tier prerequisite step and typically comes first in the propulsion branch, opening the path toward Ion Thrusters.

Improved Engines details →Ion Thrusters details →

More propulsion comparisons