"Your body is a shell. Your mind is a file. Your death is temporary."
Eclipse Phase is a transhuman science-fiction horror RPG from Posthuman Studios. Two centuries after the technological singularity, humanity has spread across the solar system and consciousness has become data: your mind (ego) can be backed up, beamed over laser links, and downloaded into a new body (morph). Play unfolds after the Fall — a near-extinction event in which the rogue AIs known as the TITANs almost wiped out transhumanity. A crunchy percentile (d100) system steeped in body horror and existential dread. Distributed free under a Creative Commons license.
The inner system is ruled by hypercorps and bioconservatives; the autonomist habitats of the Belt and outer planets run on direct democracy and reputation economies. Earth is a quarantined wasteland abandoned to the TITANs. Characters are agents of Firewall, a covert network that fights existential risks: infectious nanoswarms, alien artifacts, the Pandora Gates, and the remnants of singularity-level intelligences.
Percentile (d100)
Roll 1d100 and score at or under your target skill. The tens digit sets your Margin of Success (MoS): result quality, damage, and complications. Criticals land on doubles (11, 22, 33…).
Ego & Morph
A character is an ego (mind, skills, memories) inhabiting a morph (body). Bodies swap freely: biomorphs, synthmorphs, infomorphs. Death of the body isn't the end — you're resleeved from a backup into a new shell, at a psychological cost in stress.
Pools
In 2nd edition, flexible resources (Insight, Moxie, Vigor, Flex) are spent on rerolls, initiative, and narrative edits. Pools scale with your morph and ego, adding tactical depth without slowing play.
TITANs & x-risks
Existential threats are the game's core: exsurgent infections, alien tech, basilisk plagues. A Stress test (the sanity analog) tracks psychological damage. Horror here isn't set dressing — it's a system mechanic.
Open in Session Zero to let every player vote and see the results.