Scelo Atlas¶
World-scale risk simulation for actuaries — an Unreal Engine 5 plugin by Intelligent Actuaries.
What Twinmotion is to architects, Scelo Atlas is to actuaries.
Scelo Atlas brings real catastrophe modeling into Unreal Engine 5: parametric hazard physics (Holland wind fields, tornado vortices, flood inundation, ground-motion attenuation), insured exposure portfolios, engineering vulnerability curves, a background-threaded Monte Carlo event-loss engine producing EP curves / AAL / TVaR — and a cinematic layer where a hurricane visibly tracks across a portfolio while gross losses accrue in real time on screen.
It is the simulation front-end of Scelo, the actuarial intelligence platform by Intelligent Actuaries. The optional Scelo Bridge ships each simulation run to Scelo's climate and capital agents and returns an AI-written executive brief inside the engine. Without the bridge the plugin is fully offline; every result exports to local JSON and CSV.
The invariant that matters¶
The cinematic demo and the 100,000-year batch run share one hazard model and one financial engine. Live events accrue dollars as a running max of hazard intensity over exactly the analytic swath's discrete samples, so end-of-event live totals equal the analytic event totals bitwise — logged as a floating-point-exact assert. What the executive watches is what the actuary computed.
Why this matters¶
Actuaries today see catastrophe risk as rows in a spreadsheet. Scelo Atlas lets a Chief Risk Officer stand inside the 1-in-250 event: watch the storm make landfall over their actual portfolio, watch the loss counter cross the reinsurance attachment point, then read the EP curve the engine computed from 100,000 simulated years. Same rigorous math — radically better intuition, communication and decision-making.
What's in v0.2¶
| Capability | Detail |
|---|---|
| Hazard physics | Holland (1980) asymmetric cyclone wind field, Rankine tornado vortex, parametric flood inundation, tsunami surge, point-source PGA attenuation, playback of real strong-motion earthquake records |
| Exposure | CSV portfolio import (lat/lon, elevation, TIV, occupancy, policy terms), OED import, geo-projection, instanced-mesh portfolio visualizer |
| Vulnerability | Per-(peril, occupancy) curves with Beta-distributed secondary uncertainty |
| Financial engine | Site deductibles/limits/shares, event-loss tables with ground-up vs insured split, OEP & AEP curves, AAL, annual σ, TVaR, reinsurance and parametric structures, capital allocation |
| Monte Carlo | Poisson (or negative-binomial) event frequency over a stochastic catalog, background-threaded, 100k+ years, progress + completion delegates |
| Scelo Lab | Sandbox arena where every shape you build is priced as an insured location — see Scelo Lab & Climate Studio |
| Cinematic layer | Live cyclone/flood/tornado/quake actors plus a one-command ~66 s film — see Cinematic |
| Climate Studio | Pathway × horizon scenario tool with adaptation levers (illustrative) |
| Exports | Full actuarial results pack: ELT, YLT, PLT, EPT, locations, footprints, metrics JSON — see Bridge & Exports |
Documentation¶
- Installation
- Quick start
- Concepts & architecture
- Data formats
- Console reference — all 90+
Scelo.*commands - Cinematic
- Scelo Lab & Climate Studio
- Scelo Bridge & exports
Requirements¶
- Unreal Engine 5.8 (compiles and runs clean on 5.8.0, Windows/MSVC; module allow-lists also cover Mac and Linux)
- C++ project (the plugin compiles once on first build)
- Engine plugin dependencies Niagara and Water are declared and enable automatically
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