Based in Melbourne, Australia

Release date:
10 Oct, 2013

PC / Mac / Linux


Regular Price:

PC / Mac / Linux (USD)$4.99
OUYA (USD)$3.99


Def: tower defense devolved - with pheromones ! Stranded on the wrong side of the Rift during an attack on the enigmatic Def Flotilla, you are thrown into the deep end and left to control an unfamiliar alien defense system. But this isn't just about saving your own skin - millions of Def, and the fate of human-Def relations depend on your actions. Def is a unique 'minimalist' tower defense/RTS hybrid with interactive fiction story elements.


Def began life as prototype made for the Ludum Date 48 hour game jam, with the theme "Minimalism". From that initial seed, the game has been evolved and expanded with extra enemies, new defences and story driven campaign mode, while the maintaing the 'minimalist' feel of the original prototype.


  • Unique tower defense / realtime strategy hybrid
  • Enemy AI inspired by ants, with pathfinding influenced by pheromone trails
  • Guide the conversation with your alien host to unravel the story
  • Quick, pick up and play, seat-of-the-pants campaign chapters
  • Packed with pulp scifi cliches, dad jokes and cheezy Star Trekisms !
  • Neo-retro visual aesthetic, inspired by _actual_ alien user interfaces !
  • Mod support - players can create their own levels and stories.


Trailer YouTube, Vimeo

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      About OMGWTFGAMES !1!!

      OMGWTFGAMES !1!! is a teeny tiny one person indie studio working out of Melbourne, Australia, with a taste for the neo-retro. We make games using illegal ninja moves from the government. And by we, we of course mean I - Andrew Perry.

      More information
      More information on OMGWTFGAMES !1!!, our logo & relevant media are available here.

      Def Credits

      Andrew Perry
      Development, OMGWTFGAMES !1!!

      Ramiz Haddad
      Music, Freelancer

      Additional music

      presskit() by Rami Ismail (Vlambeer) - also thanks to these fine folks