redeclipse binary package in Ubuntu Focal amd64

 A fun-filled, casual, first person arena shooter, built as a total conversion
 of Cube Engine 2, which lends itself toward a balanced gameplay, with a
 general theme of agility in a variety of environments.
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  * Cross-platform multiplayer
  * Features parkour, impulse boosts, dashing, and other tricks
  * Favourite gamemodes with an array of mutators and variables
  * Builtin editor lets you create your own maps cooperatively online

Source package