Skip to main content

Exogene - 0.2

A tower defence type game with multiple waves of enemies attacking multiple points to defend.

Paul Paterson

A tower defence type game with multiple waves of enemies attacking multiple points to defend.

Place towers strategically to defend against the waves of enemies. Watch out for the enemies attacking multiple points.

Source release requires Python 2.6+, pygame and networkx (easy_install networkx)



What's new in 0.2

  • Added four new levels 
  • Added reverse mode (making 24 total playable levels) 
  • Added Mute Button to mute all sound 
  • Added check mark for levels you have completed 
  • Completing certain levels now unlocks multiple levels 
  • Added check for networkx when first running
  • Fixed bug where levels were not locked when they should have been 
  • Fixed bug where bullets would immediately hit target when pymunk not present 
  • Graphics update to icon and each turret gets its own bullet


Home Page


Exogene 0.3 — 27 Dec, 2011

Exogene 0.1 — 9 Dec, 2011

Exogene 0.2 — 11 Dec, 2011

Exogene 0.2.1 — 18 Dec, 2011

Exogene 0.4 — 28 Jan, 2012

Exogene 0.4.1 — 29 Apr, 2012 account Comments

  • renesd 2011-12-09 16:14:22

    A fun tower defense game.  Quite hard too... which I like.

    Paul Paterson 2011-12-09 17:48:25

    Thanks. I'm very interested in feedback on where it is too hard or too easy. It is difficult to tune it myself since I play each level so many times during development that I lose a bit of perspective!

    renesd 2011-12-18 12:40:24

    this error comes when you try to run the last level 'pandemonium'.
    IOError: [Errno 2] No such file or directory: 'levels/level-12.tmx'

    Paul Paterson 2011-12-18 17:41:27

    Oops, not sure how that happened but somehow the package managed to omit that file! I'll upload a new package today.

    Paul Paterson 2011-12-18 19:51:47

    Thanks for the report.

    Version 0.2.1 of the package now includes the mysterious missing file!

  • Free12345v 2011-12-11 11:27:53


  • Guest 2012-01-29 16:44:10

    It's pretty good so far. I like the difficulty, but some of the details were a bit annoying. First: Clicking on the "Start" button also places the first tower if I click on the tower selection button and then the start button on a location where a tower could go on the game screen. Second: How does one place towers under the tower selection buttons? Third: A lot of the difficulty seems to come from obscurity. How much more powerful is a Power tower compared to a regular tower? How does the damage per minute of a regular tower compare to a Sniper tower? These things could be easily discovered by browsing the source, but I'm not sure if that's how everyone is supposed to go about it.

    Paul Paterson 2012-01-30 04:07:20

    Thanks for the feedback and comments!

    I've noted down the bug about clicking on the "Start" dropping a tower. 

    There is no way to drop a tower beneath the UI at the moment. I probably just need to rearrange the levels so this isn't necessary. I've thought  about ways to minimize the UI but that is likely to be more confusing so just making the levels not require towers in that area is almost certainly the way to go.

    I originally had more info on the tower properties but this took up too much space (see above!). I'll try to find a way to add this back in a way that is compact but easy to understand! Thanks for the comment, this helps me gauge whether things are clear.