Mothership Idle Tower Defense vs Supernova
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Mothership Idle Tower Defense
Engage in a roguelike tower defense experience set in space. Collect unique upgrades and power-ups to customize your ships and advance through challenging enemy waves. Enjoy a minimalistic design with intuitive controls for a relaxing yet strategic gameplay session.
- 20+ unique ship upgrades
- 40+ randomized power-ups
- Collectible power gems
- Simple, intuitive controls
- Active developer support
- Roguelike progression
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Idle Roguelike Tower Defense! Crazy upgrades, intriguing progression, and endless variety. All wrapped up in a small minimalistic package! “At the heart of the universe the godlike entities guard secret knowledge, energies, and equipment. Enter into this galactic plane to loot and pillage in the name of power! Or, at least try to survive…” This is a combination of all your favourite game elements all wrapped up in a perfect little package. Idly manage your space colony as it wrecks havoc and earns you epic rewards. Advance your strategy by choosing synergistic power-ups that give you a competitive edge. All the while, advance through ever-more challenging waves of enemies that will put your skills to the test. Features: • 20+ unique upgrades for your ships that drastically alter their power and ability. • 40+ power-ups that are randomly offered throughout each session, making every battle unique! • Collectable power gems to equip on your ships, giving you further customization and advantages in combat. • Simple and intuitive controls don’t require any micromanagement, making every session a relaxing, good time. • An active developer and Discord channel that is taking feature requests and improving the game every month! (I would love to hear from you!) Upgrade your spaceships into epic death machines. Mix-and-match powerups to get TEH URN. All in a relaxing session now! Join Discord https://discord.com/invite/HuTCDKvV Follow Instagram @galapagos.games Email jason@galapagos.games Thanks to: Simon Hason @SHDGames, for the daily assist
Supernova
An idle space tycoon game where you fuse hydrogen to grow and detonate stars. Earn permanent power-ups with each supernova to accelerate future runs. Features offline progress and a visually evolving star.
- Fuse hydrogen to create and grow stars
- Offline progress and production
- Visually evolving star stages
- Prestige system with supernova cinematics
- Deep multiplier stacking and research upgrades
- Daily missions and streaks
- Fully offline gameplay
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Fuse hydrogen into a living star. Grow it. Then blow it up — on purpose. SUPERNOVA is a premium-feel idle game about running a cosmic forge. Tap to spark fusion, build 12 generators from Hydrogen Wisp to Singularity Seed, and watch your star physically evolve — protostar, blue giant, red supergiant — until it is ready to collapse. Detonating it is the point: every supernova grants Neutron Cores, permanent power that makes each new universe faster than the last. WHY YOU'LL STAY • Real progress while you're away — production continues offline (extend the cap up to 24 hours with research), and a welcome-back doubler greets your return • A star that actually changes — five visual stages, rendered live, no canned art • Prestige that feels like a finale — a hand-built supernova cinematic, then a stronger start • Numbers that get gloriously big — Million, Septillion, and far beyond • Milestones every few minutes early on, deep multiplier stacking later • Daily missions and streaks that respect your time • 20 research upgrades that shape every run FAIR BY DESIGN • No ads. None. • No energy bars, no forced waits, no progress walls • Fully offline — no account, no sign-in, no internet required • Nothing collected, nothing tracked • Optional purchases exist (time warps, photons, a one-time Supporter Pack), and the entire game is balanced to be completed without spending anything THE LOOP 1. Tap your star and let generators forge Stardust 2. Hit ownership milestones — each one doubles a generator's output 3. Buy research, stack a Photon Surge boost, fill your Piggy Bank 4. Reach collapse readiness... and go SUPERNOVA 5. Keep your Neutron Cores forever. Start again, faster. Built by a solo developer in SwiftUI and SpriteKit. Every pixel is procedural — no asset packs, no stock art. Dark theme, tuned haptics, Reduce Motion respected. Your first universe is waiting. It starts with one atom.
Screenshots
Verdict
The clearest difference is ads: Supernova at none against Mothership Idle Tower Defense's shown. Supernova also leads on update cadence (every 2 days vs every 9 days) and ratings volume (80 vs 4). Mothership Idle Tower Defense's advantage is review sentiment (100% vs 76%) and rating (4.8 vs 4.5). On price, in-app purchases and monetization model 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
Both are free to download. Mothership Idle Tower Defense sells 7 one-off in-app purchases and Supernova sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Mothership Idle Tower Defense holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Supernova has 80 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 100% of Mothership Idle Tower Defense's written reviews are positive against 76% of Supernova's.
Mothership Idle Tower Defense ships an update every 9 days, Supernova every 2 days. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.
| Parameter | Mothership Idle Tower Defense | Supernova |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (4 ratings) — better | 4.5 (80 ratings) |
| Positive reviews | 100.0% of reviews — better | 76.3% of reviews |
| Number of ratings | 4 | 80 — better |
| Update frequency | Every 9 days | Every 2 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac, Apple TV, Vision Pro — better |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 146 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Bern Games Inc. | HUGO ANATOLE PAUL MORICEAU |
Customer experience
Mothership Idle Tower Defense
Supernova
In-app purchases
Mothership Idle Tower Defense
- No More Ads$3.99
- 200 Polyhedrons$4.99
- 400 Polyhedrons$6.99
Show 4 moreShow fewer
- Mothership Pack$8.99
- 800 Polyhedrons$13.99
- Squadron Pack$17.99
- 2000 Polyhedrons$29.99
Supernova
- 50 Photons$0.99
- Time Warp: 4 Hours$1.99
- Break the Piggy Bank$2.99
Show 7 moreShow fewer
- Automation Core$3.99
- Supporter Pack$4.99
- Time Warp: 24 Hours$4.99
- 300 Photons$4.99
- 700 Photons$9.99
- Time Warp: 7 Days$14.99
- 1600 Photons$19.99
Questions
Is Mothership Idle Tower Defense free?
Is Supernova free?
Which has better reviews, Mothership Idle Tower Defense or Supernova?
Do Mothership Idle Tower Defense or Supernova have ads?
Which is updated more often, Mothership Idle Tower Defense or Supernova?
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