Echo Loop

Defend the Core, then watch your run play back — every wave you clear becomes a translucent Echo that fights beside you forever.

How to play

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.

Controls

• 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.

Tips & strategy

• 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.

About Echo Loop

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. Browse all games →