Spira Defense is a "fixed turret" type tower defense game. You control a station with 5 turret spots, and enemies spiral in from afar. The station and the turrets don't move. The enemy don't exactly follow a fixed path either.

There are six types of turrets, and you will need to read the help file (or the homepage) on what the turrets actually does. You can upgrade range, power, and the special power (which depends on the turret type, such as firing rate).

You can also give different priorities to different turrets, like shoot weakest, shoot strongest, shoot fastest, or shoot closest. Also, in certain waves you get "power-ups" that you can activate later for specials like "double damage", "double score", and so on



The game can be quite difficult. If you have the wrong turrets no amount of upgrades will save you past level 15. If you got the right ones you can probably survive up to level 40 or so. If you got up to 60, by the maker's comment you're pretty good. World record is about level 100.



The game has very smooth animation since the sprites are quite simple, and sound effects are decent if a bit repetitive. Best part... It is only a few hundred KB in size. Definitely give it a try.

The author actually has two more variants of the game: Void Defense and Wave Defense that you can try as well.

Spira Defense on Appbrain

