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