Synthwave Tower Defense

Voltline is a premium tower defense game wrapped in a cyberpunk-synthwave aesthetic. 30 campaign levels, roguelite mode, survival, weekly challenges, epic bosses, and a procedural soundtrack. No ads. No pay-to-win.

30 Levels Roguelite Mode Tower Synergies Epic Bosses
Download on App Store

Defend the Grid

Six tower types, three upgrade tiers, and synergies that reward strategic placement.

30 Levels × 3 Difficulties

Battle through 30 handcrafted levels across 3 acts. Normal, Hard, or Insane — each scales enemy HP, speed, and your economy.

Roguelite Mode

Start with EMP and one random tower. Draft new towers every 3 waves. Maps rotate every 5 waves with escalating modifiers.

Tower Synergies

Cryo-Burn, Ionized Grid, Suppression Field, and the new Slow Field — place towers strategically to trigger powerful combination effects.

Epic Boss Encounters

19+ unique boss levels with multi-phase mechanics and crisis-tier soundtrack swells. Master each boss to clear the campaign.

Weekly Challenges & Survival

Rotating weekly modifiers and an endless survival mode for leaderboard chasers. Career stats and shareable victory cards track every run.

Dynamic Soundtrack

Procedurally generated synthwave layers that react to gameplay. Ambient pads, driving bass, crisis rhythms. Every session sounds different.

Fully Accessible

Colorblind mode with geometric symbols and pattern fills. Reduced Motion simplifies animations. Every player can enjoy the full experience.

Premium Experience

No ads, no loot boxes, no gacha. Earn everything through gameplay. 12+ unlockable tower color schemes with HDR bloom.

See It in Action

v1.1

What's New

Slow Field Synergy

A new Core Depth synergy joins Cryo-Burn, Ionized Grid, and Suppression Field. Slow Field bleeds momentum from enemies inside its radius — perfect for funneling waves into your highest-DPS towers.

More Boss Encounters

19+ unique boss levels with multi-phase mechanics. Each boss has its own crisis-tier soundtrack swell and a tell that rewards careful tower placement.

Weekly Challenges & Survival

A new endless Survival mode and rotating Weekly Challenges with hand-picked modifiers. Climb the Game Center leaderboard, then start over on a fresh map next week.

Career Stats & Share Cards

A lifetime stats dashboard tracks waves cleared, towers placed, synergies triggered, and bosses defeated. Tap to mint a shareable victory card after every run.

Ready to Defend?

Download Voltline and hold the grid.

Download on App Store