Echo Loop

You are the defense. Move around the Core and auto-fire at the enemies pouring in each wave. Clear a wave and your run is recorded, keep it as an Echo and a ghost of your past self will replay those exact moves in every wave that follows. Stack up to six Echoes and a whole squad of former selves fights alongside you while you focus on the new threats.

• Move freely and aim toward the cursor; your shots fire automatically.
• Surviving a wave records your run, which you can save as an Echo.
• Each saved Echo replays its moves forever, adding firepower every later wave.
• Defend the Core's integrity, let too much through and the run ends.

• Desktop: move with W A S D or the arrow keys, aim with the mouse (auto-fire toward the cursor), M to mute.
• Phone & tablet: a keyboard and mouse are recommended, movement and aiming use key and pointer input.

• Only keep an Echo from a clean, efficient wave, a sloppy run replays its mistakes forever.
• Fire, Damage and Pierce upgrades buff every Echo at once; Move Speed only helps the live you.
• Position yourself to cover the gaps your Echoes leave, not the lanes they already hold.

You are the tower — moving around the Core and firing — which is already a departure from tower defence. The original element is what happens after a wave: your run is recorded, and a ghost of your past self replays those exact moves in every wave that follows.

Racing games have used the replayed ghost since Super Mario Kart in 1992, but as a benchmark to beat. The recorded self as a collaborator is a puzzle-game idea, worked out most clearly in The Misadventures of P.B. Winterbottom (The Odd Gentlemen, 2010), where clones repeat a recorded action and become platforms and helpers.

Stacking up to six of them makes every wave a message to your future. A lazy clear is a weak echo you are stuck with, so the strongest play is to move as though somebody who needs the help is watching — because they are.

Echo Loop is an original free browser game that twists the tower-defense genre with a time-replay hook: your saved runs become ghostly allies. Built in-house for PlayPendium, it runs entirely in your browser.

A free, original browser game on PlayPendium. No download, no install.