Voltline vs PolyTowerz
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Voltline
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Build a neon defense that works together. Place six tower types, wire them into energy circuits, and adapt as enemy waves push through the grid. Try five campaign levels free, then unlock the full campaign with one purchase. FAIR PRICING Try the first 5 levels free. One single purchase unlocks all 30 levels, boss fights, and every future update — forever. No subscriptions, no consumables, no ads. Roguelite, survival, and weekly challenges are free for everyone. The expedition and the daily challenge are free too. Core gameplay runs fully offline; a connection is only needed for the one-time purchase, Game Center, and iCloud sync. THE ENERGY CIRCUIT A Laser charges a paired Grid, and a Pulse spends the charge in a burst. The circuit campaign teaches it from the first levels and reworks eight key levels around it. Prefer the original levels? Switch to the classic campaign in Settings at any time; a saved run keeps the campaign it started in. 30 CAMPAIGN LEVELS x 3 DIFFICULTIES Battle through 30 handcrafted levels across 3 acts. Play on Normal, Hard, or Insane - each difficulty scales enemy HP, speed, and your starting economy. Earn up to 3 stars per level and accumulate Voltage to unlock tower tiers, abilities, modes, and color schemes. THREE BOSSES In the circuit campaign each act ends with its own boss: the Relay Warden shielded by escort generators, the Route Splitter that divides the wave across two routes, and the Blackout Core that marks a circuit zone before shutting its extra charge down. Each one is announced before it arrives, and each has a counter. EXPEDITION A run of 15 waves in three sectors, with a boss at the end of each. Pick a start kit, then choose modules between waves from a set of twelve that change how your circuit, control, and economy work. Expeditions are unranked. ROGUELITE, SURVIVAL & DAILY CHALLENGES Start a roguelite run with EMP and one random tower, then draft your next tower every 3 waves from a curated selection of three choices. Every 5 waves the map rotates and a modifier shakes up your approach. Endless survival mode tests your endurance against escalating waves. The daily challenge and the weekly challenge give everyone the same level, rules, and towers - compete on Game Center leaderboards. CHALLENGE CODES AND MASTERY Finish a run and share its challenge code. A friend who enters it plays the same expedition boards, offers, and bosses, or the same daily or weekly challenge; a campaign code opens the same level, difficulty, and modifiers. Mastery goals in the campaign, the expedition, and survival earn badges for your stats screen. TOWER SYNERGIES & ACTIVE ABILITIES Six tower types - Laser, EMP, Firewall, Tracer, Grid, Pulse - each with 3 upgrade tiers and branching specializations. Pair adjacent towers to trigger five synergies: Cryo-Burn, Ionized Grid, Suppression Field, Overcharged Lattice, and Kinetic Relay. Deployable abilities charge as you fight: Slow Field slows every enemy on the grid for a few seconds. BUILT FOR ACCESSIBILITY Colorblind mode adds geometric symbols on every tower and pattern-fill HP bars, not just color. Reduced Motion simplifies animations, and a Flashing Effects toggle turns off strobing and flash-based effects for photosensitivity. Larger Text offers three text sizes, up to 1.5x standard. VoiceOver support covers menus, HUD, and tower panels, plus a board overlay that reads out every grid cell so you can place and select towers by touch. Voltline is available in English.
PolyTowerz
This is a tactical tower defense game focused on strategic placement and tower combinations. It features unique towers with distinct abilities and a deep meta-progression system. The game offers multiple modes, daily challenges, and offline play.
- 11 unique towers with distinct abilities
- Tower fusion for hybrid combinations
- Strategic synergy bonuses
- Deep meta-progression and skill tree
- Multiple game modes including endless and new game plus
- Daily challenges and leaderboards
- Offline play
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Command your defenses. Master the synergies. Conquer the waves. PolyTowerz is a tactical tower defense game where placement and combinations matter more than brute force. Every tower, enemy and explosion is drawn in code instead of painted as an image, so the board stays razor sharp neon at any speed. Plays offline, or online in co-op with a friend. 11 UNIQUE TOWERS • Shard: Rapid tri-shot for clearing swarms fast • Bastion: Reliable all-round cannon for steady damage • Hex: Chain lightning that bounces between enemies • Pulse: Radial burst with a slowing aura • Prism: High-damage sniper that pierces through multiple enemies • Nova: Ignites enemies with burn damage that bypasses shields • Laser: Sustained beam tower with widening firepower • Blackhole: Fires persistent vortex zones that pull and damage • Scythe: Spawns rotating blade zones for continuous area damage • Acid: Corrosive globs that make enemies take more damage from all towers • Sol: Charges solar energy, then fires one devastating sustained beam THE FOUNDRY Fuse two towers into one hybrid. Chassis plus infusion, 66 combinations to discover, each with its own name, look and dual attack. Defeat the first boss to bring the forge online. 11 POWERFUL SYNERGIES Position towers strategically to activate synergies that boost their power. Ignite Heatwave with Sol and Nova, amplify corrosion with Acid and Pulse, or form the Storm Forge triangle with Bastion, Shard and Pulse for a lightning beam that damages everything it crosses. Finding the right combinations is where the real strategy begins. DEEP META PROGRESSION Earn Core Shards by winning levels and completing challenges. Spend them in the skill tree to unlock new towers, stronger synergies and global boosts. Push for Level 5 towers and Transcendence, then raise your hybrids even higher through the Foundry. Player levels 1 to 50 with titles and avatar frames. LEVELS AND MODES 24 campaign levels across 3 difficulty tiers, 3 boss fights, 7 survival maps and an endless mode. Earn 3-star ratings to unlock the boss levels and face Omegon, the final boss only the sharpest commanders defeat. NEW GAME PLUS Finish the campaign and begin a cycle. Your meta progression stays, every wave hits harder, and three enemies show up that a first run never sees: Colossus, Herald and Phasewalker. A cycle is also the only way to earn the King, the twelfth tower. CO-OP Defend one board with a friend. Invite by link or code, ready up in the lobby, and share one game. Unlocked after your first win. DAILY CHALLENGES AND REWARDS • A fresh challenge every day on a rotating map • Daily login rewards with a streak bonus system • Game Center leaderboards for Endless, Daily Challenge, Survival and player level • Invite a friend and you both earn Core Shards 42 ACHIEVEMENTS From surviving with one life to activating five synergies in a single run. Every playstyle gets rewarded, from defensive perfectionist to aggressive tower spammer. BUILT TO LAST • An AI coach that briefs you before every wave, running entirely on your device (on supported devices) • Full soundtrack with battle, menu and boss themes • iCloud sync keeps your progress safe across devices • Two game speeds: normal and 2x fast-forward • Save and share a highlight of your best run • Plays offline, or online in co-op with a friend • 12 languages
Screenshots
Verdict
The clearest difference is in-app purchases: PolyTowerz at none against Voltline's 1. Voltline's advantage is ads (none vs shown) and iOS requirement (17.0 vs 26.0). On price, update cadence and device support 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. Voltline sells 1 one-off in-app purchase. PolyTowerz asks for nothing beyond the download.
Voltline ships an update monthly, PolyTowerz every 2 weeks. The most recent releases landed on November 12, 2026 and November 5, 2026 respectively.
| Parameter | Voltline | PolyTowerz |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Monthly | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | — | Ad-supported |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 8 MB | 71 MB |
| Age rating | 9+ | 9+ |
| Developer | Olof Petterson | Mustafa Karademir |
In-app purchases
Voltline
- Voltline PRO$2.99
PolyTowerz
No in-app purchases









