: Development of diverse power sources, such as thermal and hydrogen supplies, each with distinct costs.
: New commands and options for programming and manipulating hostile NPCs. File: The.Fifth.Day.v0.0.73.zip ...
As an Alpha release, version 0.0.73 focuses on stabilizing the game's foundation. While specific granular changelogs for this exact minor version are often archived in developer logs, the surrounding roadmap for this phase of development included: : Development of diverse power sources, such as