Unstructured ideas
Organizes scattered ideas into a coherent foundation.
Pocket Universe Engine
Build universes
with coherence,
not automatic stories.
PUE is a system to define rules, structures, and causes within a fictional universe. It doesn't write for you. It helps you sustain canon.
Most creative tools help you produce. PUE helps you sustain.
Weak internal rules
Defines limits and causes to avoid contradictions.
Hard to maintain canon
Maintains consistency as the universe grows.
System logic
Layered depth
C0 - minimal exploration
Base idea and first usable rules.
C1 - functional structure
The universe starts to hold itself as a coherent system.
C2 - explanatory context
The pieces gain relation, logic, and context without forcing a narrative.
C3 - causal depth
Working the deep why of characters, cultures, and structures.
Output sample
C0 Output Example
Minimal input
Composite seed preview Universe where reality is not fixed, but a network of events that only stabilize when observed, measured, or remembered. The most advanced civilizations don't master matter or energy, but the interpretation of patterns and the validation of what is real. The central conflict arises between those who seek to fix reality to avoid chaos and those who believe constant change is the only form of evolution. Tone: speculative science, cosmic mystery, tension between knowledge and control. Universe Core: reality functions as a probabilistic system that collapses into defined states through conscious observation or persistent recording. Time is not linear, but a network of possible trajectories where each event must maintain causal coherence once fixed. Matter, energy, and information are unified in the same substrate: everything that exists can be interpreted, altered, or stabilized through advanced measurement processes. There exist entities or forces that operate as system regulators, ensuring that inconsistencies do not collapse the fabric of reality. Paradoxes are not forbidden, but generate instability that must be resolved or isolated. The scale of the universe is galactic, with regions where reality is more stable and others where it is highly volatile. The limits of canon are defined by the impossibility of breaking causality once an event has been observed and validated.
C0 Output
{
"impression_level": "C0",
"universe": {
"multiverse_core": {
"structure_type": "unique",
"multiverse_origin": "pending_user",
"base_logic": "Probabilistic reality that collapses to defined states through conscious observation or persistent recording; once an event is validated, causality is fixed."
},
"nomenclature": {
"author_name": "pending_user",
"desired_tone": "speculative science, cosmic mystery, tension between knowledge and control",
"aesthetic_references": [],
"official_universe_name": "pending_user",
"internal_variants": []
},
"map": {
"main_nodes": [
"high stability regions (fixed reality)",
"volatile regions (highly probabilistic reality)"
],
"relationship_type": "spatial",
"approximate_region_count": 2
},
"physics_and_time": {
"physical_constants": [
"unification of matter-energy-information in an interpretable substrate",
"state collapse by observation/measurement/memory",
"mandatory causal coherence after validation"
],
"spacetime_model": "Network of possible trajectories where events stabilize through observation/recording and must maintain causal coherence once fixed.",
"stability_type": "tropic",
"time_flow_type": "branched"
},
"nexus_points": {
"nexus_point_types": [
"transition zones between stability and volatility",
"persistent archives/records of validation"
],
"point_origin": "mixed",
"average_stability": 55,
"access_cost": "medium",
"nexus_point_catalog": [],
"usage_access_rules": []
},
"entities": {
"entity_types": [
"coherence system regulators"
],
"interference_level": "medium",
"visibility": "hidden",
"key_entity_list": [],
"intervention_rules": []
},
"universal_scale": {
"maximum_scale_level": "galactic",
"detail_level_per_layer": {
"local": "pending_user",
"planetary": "pending_user",
"stellar": "pending_user",
"galactic": "pending_user",
"multiversal": "pending_user"
},
"main_focus": "Structural conflict between reality fixation (control/stability) and maintenance of change (evolution/variability) under an observational probabilistic reality framework.",
"universal_scale_profile": "pending_user",
"detail_priorities": []
}
}
}C0 doesn't narrate. It defines a coherent foundation from which a story can exist.
Current release
Foundation Release
The current foundation allows you to build universes, export canon, and work today with a usable structure.
Universe Laws
Design Layer
Factions & Characters
Final note
Not for everyone.
PUE is made for creators who want to understand why their universe works, not just describe it.
Enter the System