TTA 1
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Trailers & screenshots
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About TTA 1
TTA 1 is a tower defense game with puzzle elements. You defend maps from waves of enemies by choosing and aiming towers, while working out how to counter enemies with special abilities.
Defend the maps
You use four different towers, each with its own special attack and three upgrade tiers. Aim with the mouse and mouse gestures. In most maps, building a line of towers is not enough: you need to analyse the enemies and find a way to beat them. The game has three difficulty levels and is easy to learn but hard to beat.
Levels and enemies
The game includes 20 levels and three bosses. Around 30 different enemies appear, about half of them with special abilities to defend themselves. Monster Power Levels are also included, and boss levels feature one special tower.
Key features
- Minimalistic design
- Easter egg
Frequently asked questions
The best price for TTA 1 is $3.99 at Steam. It is the only shop with an offer that activates in your country.
The minimum requirements for TTA 1 are: Windows Vista, GeForce GTX 750, 500 MB RAM, 200 MB storage. It runs on Windows only. The recommended specs are in the System requirements section.
No. TTA 1 is a single-player game.
Yes. TTA 1 is the full base game. You need nothing else to play it.
Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.
Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.











