Inspired by a classic
Endless Sky
by Michael Zahniser and contributors · 2015

Free open-source space game in the Escape Velocity mold.
Endless Sky is a 2D space trading and combat game inspired by the classic Escape Velocity series. Work your way up from a relatively wimpy shuttle, cargo ship, or fighter, to a highly upgraded and customized flagship or to a massive fleet of warships or freighters.