Developer documentation

Select what you want to do, and click the link to open the documentation:

Create addons for the Arrow Freighter
  • What: Creates skins, roof screen, radio sound, translate doc etc. etc.
  • No programming :)
  Click here to open the Arrow Freighter's SDK doc



Create or skin Vehicle
  • What: Cars, rovers, landspeeder, boats etc. etc.
  • Requires: meshes, texture, config file, sounds.
  • Note: Can be manned or unmanned, can carry cargoes or be spawned by unpacked cargoes (interesting for rovers).
  • No programming :)
  Click here to open the Vehicle PDF doc



Create or skin Cargo
  • What: Cargo for UCGO (resource, unpackable or vessel cargo)
  • Requires: meshes, texture, config file.
  • No programming :)
  Click here to open the Cargo PDF doc



Station mine or factory resources
  • What: Allow any object to supply ressources
  • Requires: config modification [meshes textures for a new object] (programming if you do vessel grabbing part see below)
  Click here to open the station PDF doc



Make your vessel cargo compatible
  • What: Allow your vessel to carry and use UCGO cargoes
  • Requires: C++ programming. (SDK available)
  • Note: A complete walkthrough with code ready to copy/paste is available. If your vessel is already done, adding Cargo will only take about 20 minutes.
  Click here to open the UCGO SDK folder
(contains readme, code example, SDK lib and header)
  Click here to open the C++ SDK PDF


Make your vessel UMmu 3.0 compatible
  • What: Allows your vessel to carry UMmu crew
  • Requires: C++ programming. (SDK available)
  • Note: A complete walkthrough with code ready to copy/paste is available. If your vessel is already done, adding UMmu will only take about 20 minutes.
  Click here to open the UMmu SDK folder
(contain code example, SDK lib and header)
  Click here to open the UMmu SDK PDF


Upgrade UMmu 1.5 vessels to UMmu 3.0 (CTD BUG)
  • What: UMmu 1.5 had a CTD bug at ingress (rare but annoying)
  • Todo: Recompile vessel dll with new 3.0 lib OR use the patching utility.
  • Note: Launch the dll patching utility, which will clear this bug, or recompile with the new UMmu 3.0 lib (see above. No changes in code required, new features available)
  Click here to patch all the UMmu 1.5 dll of this orbiter installation (click "execute")