Sphere TD vs Overclock Grid
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Sphere TD
A complex tower defense game where you build and upgrade towers to defend against waves of spheres. Strategize with deep customization, resource management, and research to overcome challenges. Offers extensive replayability with numerous levels and modes.
- Tower and projectile customization
- 30 base towers with 28+ stats
- 33 mods with millions of combinations
- Research and crafting system
- Tower inventory and energy management
- 50 hand-crafted levels and endless mode
- Offline and online play with cloud sync
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Sphere TD is a tower defense game with one difference: there are no preset towers. You build every tower yourself, then send it out to defend your base. WHAT IS IN THE GAME - 39 towers, each with its own grid layout and function - 33 mods, each with tiers, MK upgrades, a B-Side function, and 3 perks - 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, meta progression, and theorycrafting builds, 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?
Overclock Grid
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Build your ultimate PC rig on a grid and master the art of overclocking! In Overclock Grid, you are the engineer of a high-stakes server room. Place components, manage intricate power grids, and balance thermal outputs to maximize your idle income. But be careful—exceed your power or cooling capacity, and you’ll face the dreaded Thermal Throttling. Core Features: • Hardware Logic Puzzle: Strategic placement matters. Build efficient clusters to earn more money every second. • Manage the Heat: Use fans, coolers, and liquid cooling to prevent system failure. • Prestige for Power: When the rig hits its limits, perform an Overclock Reset to collect permanent Shards and unlock powerful skill upgrades. • Offline Earnings: Your servers work while you sleep. Check your SYSTEM BOOT LOG when you return! • Industrial Atmosphere: Immerse yourself in a dark, cyberpunk server environment with reactive neon cables. Do you have the skills to optimize the ultimate rig? Balance your power, manage the heat, and rule the grid! Overclock Grid is free to play, with optional rewarded ads to boost progress and in-app purchases
Screenshots
Verdict
Sphere TD and Overclock Grid are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Sphere TD sells 10 one-off in-app purchases and Overclock Grid sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
| Parameter | Sphere TD | Overclock Grid |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (9 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 9 — better | — |
| Update frequency | Every 2 days | — |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 332 MB | 44 MB |
| Age rating | 12+ | 4+ |
| Developer | StandardIssueGames | AYBERK YATAGAN |
In-app purchases
Sphere TD
- Au Field Ration$4.99
- Defender Starter Pack$7.99
- Au Supply Cache$9.99
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- Galatium Express Token$9.99
- Galatium Academy Pack$14.99
- Shadow Broker Vantage$19.99
- Au Enterprise Fund$24.99
- Flux Enrichment Grant$24.99
- Au Strategic Stockpile$49.99
- Au Global Reserve$99.99
Overclock Grid
- Starter Pack$1.99
- Remove Ads$3.99
Questions
Is Sphere TD free?
Is Overclock Grid free?
Do Sphere TD or Overclock Grid have ads?
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