What is Sphere TD?
Imagine a tower defense game where you don't just place towers, you actually engineer them from the ground up. Sphere TD ditches presets entirely, forcing you to route mods through a grid to create the perfect projectile. It's a wild mix of a laser puzzle and a strategy game.


Gameplay
Forget everything you know about Bloons or Kingdom Rush. You aren't just plopping down a tower and clicking 'upgrade' to Level 3. In Sphere TD, there are zero presets. You actually engineer every single tower from scratch using a grid system to route mods. It's basically a laser puzzle mixed with a TD. You've only got 5 tower slots, so you can't just spam the map to win. Instead, you spend your time messing with 33 different mods to make a single projectile bounce, split, chain, and pierce. When you finally nail a routing sequence and see one shot wipe out a whole wave of spheres, it's pure dopamine.
It's a total brain-burner, though. The buildcraft is the whole point, but it gets complex fast. Because it's in Early Access, it's got some rough edges. The UI and general flow feel a bit 'indie' and lack polish, but the core loop is addictive enough that you'll probably ignore it. At $13.99, you're paying a premium for an unfinished product, but the sheer ambition of having one tower with a million combinations justifies the cost if you're into this kind of tinkering. Just don't expect a streamlined experience; you're here to work for your victory.
Key Features
- Build towers from scratch via grids
- 33 different projectile mods
- Limited to 5 tower slots
- Zero preset tower types
Video Review
Screenshots
Verdict
“Like Miner Gun Builder Great Game”
Grab this if you love optimizing complex systems and tinkering with grids. If you just want to zone out after work or hate reading manuals, skip it or wait until the Early Access polish is finished. 8/10.
View on Steam →* Price at time of publication (checked 25.06.2026). Prices may vary by region and are subject to change. This is an editorial review, not a commercial offer.