AEE Documentation

ACE Environment Extended

ACE Environment Extended (AEE) is a physically accurate environment simulation for Arma 3, extending ACE3. It models elevation lapse rates, terrain microclimate, true air density, Koppen biome classification, thermal and physiological effects, optics, mobility, environmental conditions, maritime state, radio propagation, and atmospheric events.

The mod is standalone. It requires only CBA_A3. The core addons have no ACE3 dependency; the compat addon compat_ace3 connects the simulation to ACE3.

Author: lErrorl404l. Licence: GPL-2.0-or-later with a PBO-distribution exception.

Features

  • Elevation lapse rates and diurnal temperature cycles.
  • Terrain microclimate, including urban heat islands and water influence.
  • True air density from temperature, pressure, and humidity.
  • Koppen biome classification with seasonal variation.
  • WBGT heat stress and altitude acclimatisation.
  • FAA time-of-useful-consciousness hypoxia.
  • ISO 17166 UV index with ozone absorption.
  • Optics effects, including thermal crossover, mirage, and glare.
  • Cn²-based atmospheric seeing.
  • Vehicle and helicopter mobility, including engine derating and lift.
  • Environmental effects, including foliage, scent, and fire risk.
  • Rothermel fire spread.
  • Stefan freeze and thaw depth.
  • FAO-56 Penman-Monteith evaporation.
  • Maritime state, including harmonic tidal constituents (M2/S2/K1/O1).
  • WMO Beaufort sea state.
  • Radio propagation from the Friis equation with ITU-R P.531 ionospheric absorption.
  • ICAO eddy dissipation rate turbulence.
  • Atmospheric events, including lightning, sandstorms, and NWS microburst tiers.

Addon structure

The project has 19 addons under addons/. The 13 core addons are main, core, actions, atmos, ballistics, environmental, fx, maritime, mobility, optics, physiology, radio, and thermal. The 6 compat addons are compat_ace3, compat_acm, compat_acre2, compat_kat, compat_realweather, and compat_tfar.

Addon Role
main Bootstrapper
core Orchestrator and shared state
atmos Atmosphere and weather
thermal Temperature and thermal effects
ballistics Air density and ballistics
optics Optics and visibility
mobility Vehicle and ground mobility
environmental Environmental and seasonal effects
maritime Sea state and tides
physiology Physiological effects
radio Radio propagation
fx Visual and audio effects
actions Player actions and reports
compat_ace3 ACE3 integration
compat_acm ACM integration
compat_acre2 ACRE2 integration
compat_kat KAT integration
compat_realweather Real-weather file integration
compat_tfar TFAR integration

Build PBO names are aee_<component>. For example, the core addon builds to aee_core.pbo.