Sphere TD
StandardIssueGames Games iPhoneiPadiPod touch
Sphere TD is a free Games app for iPhone and iPad by StandardIssueGames. Rated 4.6/5 from 10 ratings. Requires iOS 15.0. Updated October 20, 2026.
- Rating
- 4.6
- 10 ratings
- Price
- Free
- on the App Store
- Size
- 362 MB
- Age 12+
- Updated
- Oct 20
- 2026 · v0.17.21
Screenshots
About Sphere TD
Sphere TD is a tower defense game with one difference: there are no preset towers. You build every tower yourself by combining mods to spam more projectiles. UNIQUE FEATURES - Build & mod every tower. There are no preset towers. - Defend each map with 5 towers. Max them out and spam more projectiles. - Split your shots, bounce, multiply, shock, burn. The build is up to you. - Your base can fly, towers and all. Explore the maps and mine ores. - Research and craft mods. Just don't run out of energy. WHAT IS IN THE GAME - 41 towers, each with its own grid layout and function - 33 mods, each with tiers, MK upgrades, a B-Side function, and 3 perks, for over a million tower builds - 50 hand-crafted maps with three objectives each - Endless mode after map 50, plus map-specific challenges - A research tree, mod crafting, and a trader - Spheres that scale into elites, bosses, armored, shielded, cloaked and flying - Offline play, with cloud sync and leaderboards - Cross platform: mobile and desktop NO NONSENSE No pay to win. No time gates. No paywalls. No ad spam. No loot boxes. Funding the Galatium Academy is appreciated, never required. MESSAGE FROM THE DEV Hi, I'm Alex, a solo developer, and Sphere TD is my first game. If you like tower defense and building your own towers, you should feel right at home. Come discuss tower builds with other friendly cadets on Discord. I am committed to 10 years of support. You want it, I'll make it. Ready to join the Galatium Academy?
Ratings & reviews
4.6
10 ratings
What’s new
Version 0.17.21 · Updated October 20, 2026
- Dual Left and Dual Right mods now work from either end. - You can now drag a mod onto another to swap them. - Fixed a bug where an ad could play over the next map. - Build towers UX improvements. - Onboarding and UI improvements.
App privacy
The developer, StandardIssueGames, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Usage Data: Advertising Data
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Usage Data: Advertising Data, Product Interaction
- User Content: Gameplay Content
- Identifiers: User ID, Device ID
- Diagnostics: Crash Data, Performance Data
- Contact Info: Email Address
Used for: Third-Party Advertising, Analytics, App Functionality
Alternatives to Sphere TD
Looking for apps like Sphere TD? Here are 6 similar apps on the App Store. The highest rated is Get a Little Gold (4.9/5), and 5 of the 6 are free to download.
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Get a Little Gold
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Sphere TD | 4.6 / 5 (10 ratings) | Free | October 20, 2026 | |
| Titan Saga - Idle | 4.6 / 5 (9) | Free | Oct 21, 2026 | Compare |
| Idle Polygon | 3.0 / 5 (4) | Free | Oct 2, 2026 | Compare |
| Whispers of the Forest: Idle | 4.7 / 5 (24) | Free | Oct 22, 2026 | Compare |
| Idle Server Defender | – | Free | Mar 24, 2026 | Compare |
| System Ascension: Idle Core | 4.8 / 5 (46) | 4.99 USD | Aug 27, 2026 | Compare |
| Get a Little Gold | 4.9 / 5 (34) | Free | Aug 6, 2026 | Compare |
Compare Sphere TD with the top alternatives: ratings, updates, ASO score and keyword gaps →