- Home: https://sourceforge.net/projects/spaceopera/, http://spaceopera.sourceforge.net/
- Inspiration: Galactic Civilizations, Master of Orion
- State: beta, inactive since 2008
- Download: https://sourceforge.net/projects/spaceopera/files
- Keyword: strategy, 4X, space
- Code repository: https://gitlab.com/osgames/spaceopera.git (backup of svn, @created 2018, @stars 1, @forks 0), https://svn.code.sf.net/p/spaceopera/code (svn)
- Code language: Java
- Code license: GPL-2.0
- Developer: Lorenz Beyeler