Work · alternatives · 2026
24 alternatives to Castles and UFO's
Save your aliens from the earth!
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Castles and UFO's launched in 2017; newer entries below may have overtaken it.
- 1
Save Earth from extraterrestrial insectizide army
2015 · play.google.com · its alternatives →
- 2
Oak▲225Turn your table into an Augmented Reality playground
2016 · kickstarter.com · its alternatives →
- 3
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- 5
Destroy alien astroids to save the world
2016 · play.google.com · its alternatives →
- 6
- 7
Fallout Shelter▲180Build your own vault to survive the apocalypse!
2015 · apps.apple.com · its alternatives →
- 8
- 9
- 10
- 11
- 12
Sail to adventure through the treacherous seas
2015 · store.steampowered.com · its alternatives →
- 13
It's time for you to gather all free people of the country.
2016 · apps.apple.com · its alternatives →
- 14
- 15
Find another habitable planet and rebuild your nation
2015 · apps.apple.com · its alternatives →
- 16
a free-to-play medieval MMO tower defense
2015 · apps.apple.com · its alternatives →
- 17
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- 19
Escape a cold, inhumane factory and free yourself!
2016 · apps.apple.com · its alternatives →
- 20
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- 24
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →