ExtracTD is a humorous multiplayer tower defense game for up to 4 players in local and online co-op. Plan and build your defense maze together and defend a giant laser drill from angry space monsters.

Become a space engineer for XTEC, a greedy interplanetary corporation. Grab your converter gun and do what you are (to some degree) paid to do: Protect a giant laser drill from angry space monsters by constructing a deadly maze of towers and traps! Complete mining missions on various alien planets to unlock additional towers and upgrades. Assemble a crew of up to four players, combine the strengths of your different towers, and always remember: We are most definitely the good guys! Key Features <ul class="bb_ul"><li> Isometric 1-4 person online &amp; couch co-op tower defense </li><li> No fixed paths: plan your defense maze carefully to get the most out of your towers </li><li> Unlock up to unique 42 towers and various upgrades, combine 7 different classes of towers for special attacks </li><li> Gather construction materials with care: A single hole in a tree line can create a dangerous shortcut for the attackers </li><li> Explore diverse environments from deserts, icy glaciers, volcanoes or simply weird alien biomes </li><li> Play through a coop-campaign with a light touch to narrative with humor, levity and sci-fi references. </li><li> Balanced gameplay for both newcomers and experts of co-op chaos</li></ul>

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ExtracTD Achievements