HexTowerDefense vs Voltline
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
HexTowerDefense
Engage in strategic tower defense on a hexagonal grid. Master placement, range, and timing across 50 campaign levels, daily challenges, and a community workshop. Enjoy a retro aesthetic with no energy timers and limited ads.
- Hexagonal grid placement
- 50 handcrafted campaign levels
- Daily challenges and endless mode
- Community Workshop for sharing layouts
- Eight tower types
- Retro neon aesthetic
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Place towers. Hold the line. HexTowerDefense is a minimalist tower defense game built around a hexagonal grid. Every placement decision matters — angles, range, and timing are yours to control. Three ways to play Campaign — 50 handcrafted levels with Normal, Hard, Veteran & Nightmare difficulty. Earn up to 3 stars per level. Challenges — Daily run, Endless mode, invisible enemies, and more. Complete daily challenges to earn Workshop Tokens. Sandbox — Build freely, experiment, validate your layout, then share it with the world through the Community Workshop. Community Workshop Browse boards submitted by other players, download and test them, rate your favorites, and submit your own for review. Eight tower types, endless possibilities Neon-on-black retro aesthetic. No energy timers. Limited ads.
Voltline
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Voltline is a premium tower defense game wrapped in a cyberpunk-synthwave aesthetic. No ads. No energy timers. No pay-to-win. Just you, the grid, and escalating waves of enemies. Play offline anywhere — no internet required. **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. **30 CAMPAIGN LEVELS × 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 new towers, modes, and color schemes. Every level is hand-designed with unique grid layouts, enemy compositions, and strategic chokepoints. **EPIC BOSS ENCOUNTERS** Face powerful boss enemies on late-game levels. Bosses have massive HP pools, unique attack patterns, and demand creative tower placement to defeat. Time your upgrades and synergies carefully — one wrong move and the grid falls. **ROGUELITE MODE** Start each run with EMP and one random tower. Draft new towers every 3 waves from a curated selection of three choices — pick the tower that fits your evolving strategy. Every 5 waves the map rotates and a new modifier shakes up your approach. Modifiers range from speed boosts to economy penalties, ensuring no two runs play the same. How far can you push before the grid falls? Compete on Game Center leaderboards for the highest wave count. **TOWER SYNERGIES** Six tower types — Laser, EMP, Firewall, Tracer, Grid, Pulse — each with 3 upgrade tiers and branching specializations. Place towers strategically to trigger five distinct synergy effects: Cryo-Burn slows and damages, Ionized Grid chains lightning across the path, Suppression Field locks enemies in place, Overcharged Lattice amplifies laser-grid crossfire, and Kinetic Relay turbocharges tracer-pulse barrages. Mastering tower combinations is the key to three-starring later levels and climbing leaderboards. **ACTIVE ABILITIES** Command the battlefield with deployable abilities that charge as you fight. Unleash Slow Field to blanket the grid and crawl every enemy to a halt at the perfect moment, then chain it with your towers' synergies to turn the tide of an overwhelming wave. **DYNAMIC SYNTHWAVE SOUNDTRACK** Procedurally generated music layers that react to gameplay in real time. Ambient pads on the menu. Driving bass during combat. Intensifying rhythms in crisis moments. Triumphant phrases on boss kills. Every session sounds different — the soundtrack adapts to your strategy and the intensity of the battle. **FULLY ACCESSIBLE** Colorblind mode adds distinct geometric symbols to every tower type and pattern fills to HP bars. Reduced Motion simplifies animations and disables screen shake. A contextual hint system provides progressive guidance without spoiling strategy. Every player can enjoy the full experience regardless of ability. **SURVIVAL, DAILY & WEEKLY CHALLENGES** Endless survival mode pits you against infinite escalating waves. Daily Ops serves one shared 10-wave challenge every day — win to build your streak. Weekly challenges rotate level, difficulty, and modifier. Compete on global leaderboards. **SHARE YOUR VICTORIES** Share branded score cards directly to social media after every win. Show off your star ratings, wave counts, and synergy combos. **PREMIUM EXPERIENCE** - No ads, no loot boxes, no gacha - Play offline — no internet connection needed - Earn everything through gameplay - Unlockable tower color schemes with HDR bloom - Career stats tracking lifetime kills, combos, and progression - Game Center leaderboards and achievements
Screenshots
Verdict
The clearest difference is update cadence: HexTowerDefense at every 10 days against Voltline's every 2 months. On price, ads, in-app purchases 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. HexTowerDefense sells 4 one-off in-app purchases and Voltline sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
HexTowerDefense ships an update every 10 days, Voltline every 2 months. The most recent releases landed on August 29, 2026 and September 21, 2026 respectively.
| Parameter | HexTowerDefense | Voltline |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 10 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.5 | 17.0 — better |
| Further details — not scored | ||
| Size | 106 MB | 12 MB |
| Age rating | 4+ | 9+ |
| Developer | Maxime Hussenet | Olof Petterson |
In-app purchases
HexTowerDefense
- x2/x4 Speed$1.99
- Remove Ads$3.99
- Gotta Go Faster$4.99
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- All-in-One$4.99
Voltline
- Voltline PRO$2.99





