Games like Inbound UFO

A single-player alien-invasion tower defense with an early-2000s RTS look, tactical upgrades, and a difficulty curve that shifts from easy to hard in a compact ~5-6 hour campaign.

Alien Shooter TD
A gory, single-player tower defense game mixing tower placement with hands-on alien combat, with early-reviewer playtimes ranging roughly 9–16 hours.
2017-01-13
- Action
- Science fiction