Origin8's visually striking tower defence game Sentinel 3: Homeworld has been given new DLC, an update, and a celebratory 80% price slash.
The fresh downloadable content includes 15 new campaign levels across 15 new maps, with the first two of each free for those of us lucky enough to already own this 5-star game.
New weapons such as the Vortex and Turret Energizer Sentinel are available after the update, alongside the Energy Syphon, which satisfyingly converts kills into ship energy.
Toss in six new challenge modes and that price cut to 99c is starting to look like a real bargain.
Don't dally, though: the sale is only on until 30th May, so space cadets should get their boots on ASAP.