Cryptstone Games Sci-fi RTS/RPG, Star Prospector, has a demo available and the game is now on sale at 50% off for $9.99.
Star Prospector is a single-player strategy game set in a future science fiction universe. Star Prospector mixes elements of real-time strategy and role-playing game genres resulting in a totally new & unique gaming experience. The player takes on the role of a prospector, a one-person mining, salvage, and construction unit, taking on missions on remote planets across the galaxy in search of resources, technology, and adventure.
At the start of the game the player will choose their own prospecting rig, an all-purpose construction, combat, and mining vehicle that will be used throughout the game. The rig can be outfitted with a large selection of weapons and various upgrade modules. In each mission the player will be transported to a unique planet. There the player must build a base, gather resources, create units, and complete assigned mission objectives earning experience and credits. At each level of experience the player will get skill points and gain access to new units, buildings, and items.
Doesn't sound different enough to differentiate itself.
Choose your government: the majority ruling the minority, the minority ruling the majority, or everyone ruling themselves long as they do not initiate force, fraud, or theft against one another.