Comparison

Miner Gun Builder vs Sphere TD

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Miner Gun Builder

Pilot a spaceship through missions to earn in-game currency. Use your earnings to purchase parts and construct powerful, customizable weapons for your ship. Upgrade to larger vessels to accommodate more weapon components and explore procedurally generated worlds.

Highlights
  • Build custom weapons
  • Upgrade spaceships
  • Pilot through missions
  • Procedurally generated worlds
  • Alliance system
  • Skill tree
Features
Read full description

This is my first app. I put a lot of effort in it, hope you like it :) You are the captain of a space ship and fly through missions to earn money. With the money you can buy parts to build your weapon in your space ship. You can also buy bigger and better ships which can fit more parts. Building a small weapon is straight forward, but later you can build extremely strong weapons if you use the available space wisely. Features of Miner Gun Builder are: - 8 Captains with custom skills - 100 handmade missions - Infinite procedural created worlds - 50+ Ships - 51 Achievements - 52 Weapon components - 73 skills in the skill-tree - Your own alliance you can invite friends into - over 1.000.000.000.000 possible weapons !!! The game is a light-hearted version of an arcade space shooter and has substantial depth regarding the mechanics. If you like to tinker around and optimize stuff - This is the game for you.

About

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.

Highlights
  • 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
Read full description

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?

Screenshots

Miner Gun Builder4 screens
Sphere TD4 screens

Verdict

The call

The clearest difference is update cadence: Sphere TD at every 3 days against Miner Gun Builder's every 6 weeks. Miner Gun Builder's advantage is rating (4.9 vs 4.6) and ratings volume (178 vs 10). On price, review sentiment, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Miner Gun Builder sells 19 one-off in-app purchases and Sphere TD sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Miner Gun Builder holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: Miner Gun Builder has 178 ratings behind it against 10, so its average is the more settled of the two. Written reviews complicate that: 94% of Miner Gun Builder's written reviews are positive against 100% of Sphere TD's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Miner Gun Builder ships an update every 6 weeks, Sphere TD every 3 days. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

Scorecard4 real differences · 6 level
Miner Gun Builder versus Sphere TD: the parameters behind the verdict, then further details
ParameterMiner Gun BuilderSphere TD
PriceFreeFree
Rating4.9 (178 ratings) — better4.6 (10 ratings)
Positive reviews93.9% of reviews100.0% of reviews — better
Number of ratings178 — better10
Update frequencyEvery 6 weeksEvery 3 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size176 MB316 MB
Age rating4+12+
DeveloperGERMAPUR APPS PTE. LTD.StandardIssueGames

Customer experience

Miner Gun Builder

All ratings152 ratings
Positive98.7%
Neutral0.7%
Negative0.7%
Written reviews33 reviews
Positive93.9%
Neutral3.0%
Negative3.0%

Sphere TD

All ratings10 ratings
Positive90.0%
Neutral0.0%
Negative10.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Miner Gun Builder

Reported bugs

1 issue
  • Alliance code issues (missing 'X' characters)

Requested features

8 requests
  • More items
  • New item merging bullets
  • Updates for Apple version
  • New faction skill tree
  • Special ships
Show 3 more
  • Discount options
  • Language option
  • More updates

Sphere TD

Not enough reviews yet to summarise bugs or requests.

In-app purchases

19 purchases

Miner Gun Builder

One-time19
  • Buy 100 yellow squares$2.99
  • Buy 100 red crosses$2.99
  • Small cloud ship$2.99
Show 16 more
  • Small Spaceius Ship$2.99
  • Small Refla ship$2.99
  • Value Pack$4.99
  • Medium Cloud ship$6.99
  • Small projectile pack$9.99
  • Big Cloud ship$9.99
  • Big Spaceius ship$9.99
  • Big Refla ship$9.99
  • No Ads$13.99
  • Small premium ship$13.99
  • Buy 1000 red crosses$13.99
  • Small ship pack$13.99
  • Cloud ship pack$13.99
  • Refla Pack$13.99
  • Medium ship pack$40.99
  • Big ship pack$69.99
10 purchases

Sphere TD

One-time10
  • Au Field Ration$4.99
  • Defender Starter Pack$7.99
  • Au Supply Cache$9.99
Show 7 more
  • 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

Questions

Is Miner Gun Builder free?
Miner Gun Builder is free to download, with in-app purchases available.
Is Sphere TD free?
Sphere TD is free to download, with in-app purchases available.
Which has better reviews, Miner Gun Builder or Sphere TD?
Miner Gun Builder is rated higher. Miner Gun Builder averages 4.9 out of 5 from 178 ratings, while Sphere TD averages 4.6 from 10 ratings.
Do Miner Gun Builder or Sphere TD have ads?
Both Miner Gun Builder and Sphere TD show ads.
Which is updated more often, Miner Gun Builder or Sphere TD?
Miner Gun Builder ships an update every 6 weeks, and Sphere TD every 3 days. Most recently, Miner Gun Builder was updated on October 25, 2026 and Sphere TD on October 28, 2026.

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