KSRe adds a wide variety of both new mechanics and stock changes, often inspired by reality and suited to players of all experience levels.
Propellants: cryogenic, hypergolic, ignition failure, ullage, throttle limits
Engineering: single-fuel containers with fuel switch & simple fuel ratios
Kerbal Life: life simulation, kerbal health & damage, "dating sim" (social)
Rocket Science: new science sources, specialization, tech prerequisites
Damage: part damage, deterioration, part faults, PAL 5000 diagnostics
Progression: new tech tree & missions, facility levels, rocket vehicle start
Resources: ISRU for fuel production, resource conversion & life support
Recommended: Install KSP2 Redux and extract the latest version of the mod to the Redux install directory
Legacy support only is provided for the non-redux base game using the oldest v0.31 download
Exploration mode: (recommended) starting a new game is necessary due to the total campaign overhaul, and includes an integrated progressive tutorial.
Sandbox mode: Existing saves are compatible if all vessels are recovered.
Feedback & support on the KSP2 modding discord
Raw stats are from the beginning of time until now. Each follower and download entry represents one hour of data. Uneventful hours are omitted.