While playing the game, press = or 4, then slowly type one of the following codes to activate the corresponding cheat function. Note: Enabling a code will mark your saved game as cheated, and you will not be able to unlock achievements or appear on the leaderboards. In order to get unmarked as a cheater, you must restart the game and not use any of the cheated saved game files.
|Kill all aliens on the map||chezanator|
|Kill all aliens with cores||kristalithan|
|Tide is turned on aliens that pick up cores||indesilvermoon|
|Toggle ability for aliens to pick up cores||jeanmarie|
Successfully complete the indicated task to unlock the corresponding achievement. To view your achievements and stats in Steam, select "Community", "My profile", "View all my games", then the game and view stats.
- Alien Tears: Earn a gold medal on all missions in the Story mode.
- Annihilator: Kill 10,000 aliens.
- Arsenal: Build 20 towers in one mission.
- Base Defender: Complete the Story mode.
- Boot Camp: Finish the first 3 missions.
- Burn Baby Burn: Build 5 Inferno towers.
- Close Call: Save a core less than 10 seconds away from the map exit.
- Confident: Use speed up controls for a total of 30 seconds in any one mission.
- Death From Above: Fire the orbital laser.
- Diversity: Build all tower types in one mission.
- Eradicator: Kill 100 aliens.
- Exterminator: Destroy 1000 aliens.
- Field Promotion: Earn at least one silver medal.
- Filthy Rich: Win with 10,000 resources remaining.
- Firebug: Beat an advanced mission with only Inferno towers.
- First Blood: Kill 1 alien.
- Flawless Victory: Earn at least one gold medal.
- Full Defense: Build 50 towers in one mission.
- Full House: Build all upgrades of all tower types in one mission.
- Full Potential: Beat an advanced mission with only level 3 towers and no selling.
- Great Ball of Fire: Build 5 Meteor towers.
- Gun Crazy: Beat an advanced mission with only Gun towers.
- Happy Returns: Recover a loose core.
- Head Trauma: Build 5 Concussion towers.
- Hey! That's mine!: Kill an alien carrying a power core.
- High Voltage: Build 5 Tesla towers.
- I Spy: Activate reconnaissance system.
- Indecisive: Sell 10 towers in a single mission.
- Kaboom!: Build 5 Cannon towers.
- Leadhead: Build 5 Gun towers.
- Liquidator: Sell 5 towers.
- Master Strategist: Earn a gold medal on all Challenge modes.
- Minimalist: Beat an advanced mission with only level 1 towers.
- Nail Biter: Win mission with the last core less than 10 seconds away from the map exit.
- No Sale: No towers sold in a single mission.
- Not So Fast: Build 5 Temporal towers.
- Overseer: Build 5 Command towers.
- Penny Pincher: Win with 5,000 resources remaining.
- Pew Pew: Build 5 Laser towers.
- Planet Defender: Earn a silver medal on all missions in the Story mode.
- Power Builder: Build 6 towers within 10 seconds.
- Pyrrhic Victory: Shoot down flying alien carrying a core.
- Relay Race: Witness 1 core handed off 10 times within 20 seconds.
- Retry: Reload an earlier save checkpoint.
- Salvage Rights: Destroy at least one boss alien.
- Sharpshooter: Shoot down a flying alien.
- Shell-shocked: Beat an advanced mission with only Cannon towers.
- Siege Breaker: Survive 100 waves on the Grinder challenge mode.
- Surplus: Win with 1,000 resources remaining.
- The Long Road: Alien time until exit exceeds 5 minutes.
- The Not-So-Friendly Skies: Build 5 Missile towers.
- Tower Expert: Build every tower and upgrade.
- Untouchable: Beat an advanced mission with zero cores captured.
- Well Invested: Gain 10000 resources from interest in a single mission.
- What IS that?: Inspect 10 aliens.
- Xenocide: Kill 50,000 aliens.
- Yellow Beats Green: Upgrade a tower.
- Annihilator: Kill 10,000 aliens.