You drop into the Core with 60 seconds on the clock. That number is the only thing you have. It is your health bar — enemies take chunks out of it. It is your ammo — every shot, dash and shockwave is paid for in seconds. It is your wallet — whatever you are still holding when it runs out gets converted into fragments you spend on the upgrade tree.

So every single decision is the same decision: is this worth the time? Dashing out of a corner costs 2 seconds. Clearing the room with a pulse costs 5. Standing still costs 1 per second and gets you killed. There is no safe option, only cheaper ones.

THE LOOP

Enter the Core → harvest fragments → outlive the countdown → get extracted → spend everything on the talent tree → go back in a little less fragile.

CONTROLS

Every cost above drops as you invest in the tree — the fully upgraded shot costs a quarter of a second.

THE CENTRAL UNIT

Between runs you spend fragments on a tree of 22 nodes across five branches — and you cannot read the whole thing from the start. Nodes one step beyond your reach show up as encrypted silhouettes; anything further away is not even drawn. The tree opens up one purchase at a time.

• TIME — a bigger starting countdown, softer hits, time back for every kill
• PULSE — cheaper, wider, deadlier shockwaves
• HARVEST — magnetism, fragments that refund seconds, richer extraction
• CONTROL — suppress each enemy type's spawn rate individually, or slow the waves down entirely
• ARMAMENT — cheaper rounds, faster fire, piercing damage, multi‑shot fans

Two capstones sit where branches meet and need parents from both sides.

Built in Godot 4.7. There is not a single drawn asset in the game: every enemy, projectile, particle and interface element is generated at runtime from polygons, lines and glow. Progress is saved automatically between runs, in your browser too.