Review of Robots vs Robots powered by the Slant community.
Robots vs Robots is a free-style (open-env) tower defense game, and it's free.
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Pros
Pro Great design quality
The towers and robots are nicely designed which show a nice polish to the title.
Pro Free to play
Free with no In-app purchases, though there are advertisements.
Cons
Con Not many maps
Only 5 different maps to play really limits the longevity of the game.