Bubblecore: Survivors

Every bubble holds a reward—and a new threat.

Bubblecore: Survivors is an endless single-player tower defense roguelite where you decide when the next attack begins.

A mysterious world of resource-filled bubbles surrounds the Citadel. Pop one to instantly claim wood, stone, food, ether, or another valuable reward. But beware: every bubble also releases a group of monsters that immediately advances on your Citadel.

Expand carefully and reinforce your defenses one step at a time, or pop several bubbles at once to accelerate your growth at the risk of unleashing an overwhelming horde. The farther you travel from the center, the greater the rewards—and the deadlier the enemies trapped inside.

Build Your Defenses

Clear hexes and transform the land around the Citadel into a fortified stronghold. Construct towers, place statues that enhance nearby defenses, block important routes with walls, and expand your settlement with supporting buildings.

Experiment with positioning, use the terrain to your advantage, and build a defensive network capable of stopping increasingly dangerous armies.

Create Powerful Synergies

Every run offers new ways to grow stronger. Acquire and upgrade towers, open chests, discover artifacts, and combine their effects to transform a modest defense into a devastating war machine.

Increase damage, accelerate attacks, alter projectiles, strengthen your economy, or build an entire strategy around rare effects. Find a combination that keeps the Citadel standing long enough to face the next boss.

Control the Risk

There are no attack waves that begin without your input. Every new battle is the result of your decision.

Need more resources to expand? You will have to release more enemies. Is your defense handling everything with ease? Pop several bubbles and speed up the run. Misjudge your strength, and the Citadel may suddenly find itself buried beneath an entire horde.

Explore an Endless World

Expand the map one ring at a time, uncovering new territory, treasure chests, and special locations. Different map layouts reshape the available space and force you to rethink how your defenses are arranged.

Enemies become stronger as you travel farther from the Citadel. Face swift attackers, armored creatures, flying monsters, wall breakers, and other specialized threats—along with powerful bosses that put your entire build to the test.

Grow Stronger Between Runs

The run ends when the Citadel falls, but not all progress is lost. Keep the diamonds you have collected, purchase permanent upgrades, complete achievements, and unlock new towers, statues, artifacts, and starting abilities.

Choose a different approach, assemble a new combination, and see how much farther you can push into the unknown.

Key Features

• Endless tower defense on a procedurally generated hex grid.
• A unique risk-and-reward mechanic: every bubble grants resources and releases enemies.
• Player-controlled pacing—you decide when the next battle begins.
• Towers, statues, walls, and supporting buildings with distinct abilities.
• Artifacts and upgrades that create powerful gameplay synergies.
• Specialized enemies and bosses that force you to adapt.
• Multiple map layouts with different terrain and strategic challenges.
• Persistent progression, achievements, and new unlocks between runs.

Pop the bubbles. Claim the resources. Unleash the monsters. Build your defenses—and protect the Citadel for as long as you can.