Complete the indicated task to unlock the achievement.

Achievement	How to unlock
4-Face Turret Platform	The 4 faced platform is an expander piece for placing other turrets on, arranged in a pyramidal formation.
6-Face Turret Platform	The 6 faced platform is an expander piece for placing other turrets on, arranged in a cubic formation.
EMP Turret - Level 1	The level 1 EMP turret drains its target's energy, slowing it down to three quarter speed.
EMP Turret - Level 2	The level 2 EMP turret upgrade strongly drains its target's energy, slowing it down further to half speed.
EMP Turret - Level 3	The level 3 EMP turret upgrade drains its target's energy so strongly, a shell is absorbed every few seconds.
Energy Vacuum Turret - Level 1	The level 1 energy vacuum turret emits a pulse every few seconds, stopping any target within range for a moment.
Energy Vacuum Turret - Level 2	The level 2 energy vacuum turret upgrade emits a pulse with higher range, damaging and stopping any target in range for a moment.
Energy Vacuum Turret - Level 3	The level 3 energy vacuum turret upgrade emits a pulse, damaging twice and stopping any target in range for a longer moment.
Finance Generator Turret - Level 1	he Level 1 finance generator turret generates funds, providing a $100 bonus at the end of each round.
Finance Generator Turret - Level 2	The level 2 finance generator turret upgrade generates funds, providing a $500 bonus at the end of each round.
Finance Generator Turret - Level 3	The level 3 finance generator turret upgrade generates funds, providing a $2000 bonus at the end of each round.
Fortress - Bronze	Complete Fortress track on easy difficulty.
Fortress - Diamond	Complete Fortress track on expert difficulty.
Fortress - Gold	Complete Fortress track on hard difficulty.
Fortress - Silver	Complete Fortress track on normal difficulty.
Gateway - Bronze	Complete Gateway track on easy difficulty.
Gateway - Diamond	Complete Gateway track on expert difficulty.
Gateway - Gold	Complete Gateway track on hard difficulty.
Gateway - Silver	Complete Gateway track on normal difficulty.
Laser Turret - Level 1	The level 1 laser turret fires a single laser shot.
Laser Turret - Level 2	The level 2 laser turret upgrade fires a double burst shot, effectively laying down twice the damage.
Laser Turret - Level 3	The level 3 laser turret upgrade fires a high velocity pulse with a long recharge time, eliminating a single target shell from anything in it's path.
Photon Pulse Launcher Turret - Level 1	The level 1 photon pulse launcher turret fires a slow moving charge, creating splash damage on impact.
Photon Pulse Launcher Turret - Level 2	The level 2 photon pulse launcher turret upgrade fires a fast moving charge, creating double splash damage on impact.
Photon Pulse Launcher Turret - Level 3	The level 3 photon pulse launcher turret upgrade fires long range seeking missiles.
Plasma Beam Turret - Level 1	The level 1 plasma beam turret fires a high energy continuous beam, ripping through target shells.
Plasma Beam Turret - Level 2	The level 2 plasma beam turret upgrade fires a continuous high energy beam, that jumps up to twice on impact.
Plasma Beam Turret - Level 3	The level 3 plasma beam turret upgrade fires a continuous high energy beam, that jumps up to 5 times on impact.
Plastic Pulse Turret - Level 2	The level 2 plastic pulse turret fires a charge that bounces off surfaces, expiring after 6 contacts.
Plastic Pulse Turret - Level 3	The level 3 plastic pulse turret fires a charge that bounces off surfaces, expiring after 6 contacts with double damage.
Plastic Pulse Turret -Level 1	The Level 1 plastic pulse turret fires a charge that bounces off surfaces, expiring after 3 contacts.
Reactor - Bronze	Complete Reactor track on easy difficulty.
Reactor - Diamond	Complete Reactor track on expert difficulty.
Reactor - Gold	Complete Reactor track on hard difficulty.
Reactor - Silver	Complete Reactor track on normal difficulty.
Scramble - Bronze	Complete Scramble track on easy difficulty.
Scramble - Diamond	Complete Scramble track on expert difficulty.
Scramble - Gold	Complete Scramble track on hard difficulty.
Scramble - Silver	Complete Scramble track on normal difficulty.
Spiral - Bronze	Complete Spiral track on easy difficulty.
Spiral - Diamond	Complete Spiral track on expert difficulty.
Spiral - Gold	Complete Spiral track on hard difficulty.
Spiral - Silver	Complete Spiral track on normal difficulty.
Summit - Bronze	Complete Summit track on easy difficulty.
Summit - Diamond	Complete Summit track on expert difficulty.
Summit - Gold	Complete Summit track on hard difficulty.
Summit - Silver	Complete Summit track on normal difficulty.