Tower Defense vs Spire
Price, ratings, monetisation and update history for both games, side by side โ with what reviewers say about each.
Tower Defense
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Welcome to Void - a Skill-Driven Tower Defense Master the ultimate skill-based tower defense game on iOS. Infinite waves, deterministic combat, four tower classes, six maps, and global monthly leaderboards. Every run tests your strategy against escalating enemy waves, pure skill THE CORE โข Four tower classes in this tower defense TD game: Projectile (single-target precision), Laser (rapid-fire piercing), Launch (heavy splash damage), Freeze (radial slow pulse) - each one with unique effects โข Three tiers per tower with Enhance levels that scale damage, range, and fire rate โ perfect for hardcore tower defense mastery. โข Tap to cycle targeting: First, Close, Strong, or Weak (perk-locked). Infinite waves with bosses every 10 rounds: Tank โ Swarm Parent โ Shielded โ Runner, plus mini-spawner events. SIX MAPS, FOUR DIFFICULTY TIERS โข Normal: Forgiving entry to tower defense strategy. โข Medium: Bypass & Peaks โ asymmetric paths punish lazy placement. โข Hard: Switchback & Weave โ winding routes for expert tower defense players. โข Practice: Non-ranked sandbox with custom HP scaling. Hard maps unlock via milestones on easier tiers in this endless tower defense experience. PROGRESSION & PERMANENT UPGRADES โข Earn Glory Points (GP) every match. Spend on perks: Credit Surge, GP Fortune, Market Discount, Speed boosts (4ร to 5.6ร), and Weak Targeting. โข Tower Masteries to L20 per class + Bonus Masteries to L120 for account-wide buffs. โข Round milestones grant permanent GP multipliers (up to 3.0ร). Plateau Bonus Tiles add 1.2ร tower power. DAILY CHALLENGES & LEADERBOARDS Three rotating daily goals (Easy 150 GP to Hard 1,000 GP) for up to 1,550 extra GP. Global monthly tower defense leaderboard via Game Center. Six-tier Skill Rank ladder (F to S) with multipliers. Per-map Top Round boards + daily streak bonuses. iOS-NATIVE INNOVATION Your tower defense match stays visible on the Lock Screen and Dynamic Island โ see round, enemies, and lives at a glance. Tap to resume instantly. Match Reminders ping for paused runs. Background-resilient design: force-quit and return exactly where you left off. 23 ACHIEVEMENTS & FAIR PROGRESSION Milestones, Boss Hunter, Tower Mastery, Pure Run (wave 50 no revives), and more. Everything earnable through gameplay. Optional GP packs for players who want to accelerate. iPhone & iPad. Portrait mode. Requires iOS 18.2+. Game Center optional for leaderboards and monthly tower defense rankings. Live Activity, Dynamic Island, and reminders work independently. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://voidgame.app/privacy/
Spire
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Spire is a calm, endless 3D tower-stacking game. A glowing slab slides across the top of your tower โ tap once to drop it. Land it dead-center for a PERFECT to keep your full width and grow a combo; miss, and whatever overhangs gets sliced clean away and the next slab is narrower. The palette climbs through twilight as you rise, from deep indigo to warm light. There is no finish line, no timer, no pressure โ only your next best height. โข One-tap controls โ easy to learn, hard to put down โข Chase PERFECT center drops to build combos โข Soft, glowing 3D built for relaxing play โข Endless climb through a shifting twilight palette โข Works fully offline โ no account, no sign-up โข Free to play How high can you climb?
Screenshots
Verdict
The clearest difference is in-app purchases: Spire at none against Tower Defense's 4. Spire also leads on iOS requirement (16.4 vs 26.2). Tower Defense's advantage is ads (none vs shown). On price and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Tower Defense sells 4 one-off in-app purchases. Spire asks for nothing beyond the download.
| Parameter | Tower Defense | Spire |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days | โ |
| Ads | No โ better | Yes |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPad โ better | iPhone |
| Requires iOS | 26.2 | 16.4 โ better |
| Further details โ not scored | ||
| Size | 23 MB | 69 MB |
| Age rating | 12+ | 4+ |
| Developer | Jonathan Taveras | Cristopher Guido |
In-app purchases
Tower Defense
- Starter Pack$2.99
- Standard Pack$9.99
- Pro Pack$24.99
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- Elite Pack$69.99
Spire
No in-app purchases









