Endless Void: Idle Tower Defence Demo

Shoot. Upgrade. Die. Repeat.

Endless Void: Idle Tower Defence, a minimalist incremental game where your only objective is to hold the line against mathematically infinite waves of enemies.

Start with a single, basic cannon. Through persistent upgrades, deep research trees, and raw firepower, evolve your lone tower into a cosmic fortress capable of tearing the fabric of space and time. Whether you want to actively manage your tower, or sit back and let your automated drone swarms do the heavy lifting, the progression never stops.

Devastating Cosmic Legendaries:

Go beyond simple bullets. Summon screen-clearing Orbital Strikes, deploy gravitational Black Holes and chain massive Lightning strikes.

Massive 1000+ Node Talent Tree:

Shape your ultimate build through an expansive constellation of over 1000+ passives and game-defining Keystones that completely alter your playstyle.

Earned Through Mastery, Not Your Wallet:

Unlock over 35 unique tower cores and skins purely by hitting milestones and conquering achievements — zero microtransactions, just pure visual flex.

Endless Incremental Scaling:

Push through Normal, Hard, and the infinitely scaling Void Mode . As the enemies get tougher, your tools get exponentially more devastating.

The Forge (Deep Crafting System):

Slay bosses to harvest Scrap. Craft, enhance, reforge, and salvage randomized loot with unique primary and sub-stats to min-max your tower's build.

The Laboratory (Offline Progress):

Your research never sleeps. Queue up permanent global upgrades , unlock mega-projects, and gain resources even while the game is closed.

Combat Drone Bay:

Automate your defence. Deploy Aegis shields, Midas drones for boosted economy, or Kamikaze bombers to handle the swarms while you focus on the big picture.

Minimalist Retro Aesthetic:

Clean vector graphics, a nostalgic CRT-monitor glow, and a thumping synth-wave inspired audio engine keep the action readable even when the screen is filled with chaos.

Will you reach the Singularity? The swarms are infinite, but so is your potential. Wishlist now, join the community, and start theory-crafting your ultimate build!

Welcome To The Demo!

Conquer 150 waves of escalating enemy hordes on Normal difficulty. Upgrade your tower across 30+ offensive, defensive, and utility systems. Unlock 8 devastating weapon types — from Chain Lightning and Black Holes to Inferno Beams and Orbital Strikes. Explore the opening branches of a massive 1,200-node constellation skill tree. Level up to 30, research new technologies in the Laboratory, and choose from 20 unique Augments to customize each run.

What's in the Demo

150 Waves of Normal Difficulty — Face increasingly powerful enemies and boss encounters across 150 waves

8 Weapon Systems — Unlock and upgrade Cryogenics (Frost), Chain Lightning, Burn & Detonations, Black Holes, Orbital Strikes, Inferno Beams, Toxic Spore Pods, and Spinning Lasers

Deep Upgrade Systems — Over 30 upgradeable stats across Offense, Defense, and Utility tabs, including Cannon Power, Tesla Coils, Plasma Shielding, Nano-Repair Bots, and more

Laboratory Research — Research new technologies across System, Offense, Defense, Utility, and Legendary categories with concurrent research slots

Constellation Skill Tree Preview — Explore the first Keystone of each of the 5 major branches (Offense, Defense, Utility, Legends, Drones) from a 1,200-node galaxy of passive talents

20 Run Augments — Choose from 20 stackable augments every few waves to power up your current run — from Overcharged Rounds to Glass Cannon to Chronal Mastery

Full Economy — Earn coins from kills, accumulate passive income with Miners, bank interest with Compound Interest, and collect Flux orbs to fuel Overdrives

100% Save Compatible — Your demo progress transfers directly to the full Steam release via import/export save codes