
Echo Sequence
Listen, remember, and answer a growing melody.
Puzzle · Basic · Keyboard and touchPUZZLE / INTERMEDIATE
Three machines, four orders and the order of operations.
Play Factory FlowFree · No account · Keyboard and touch · Sound starts only when you choose

Choose one of the three machine slots with arrows. Space cycles +2, ×2 or −1. Use each machine exactly once. X runs the input through the slots from left to right. Match the displayed target in all four orders.
Use the on-screen directional and action buttons on a phone. Read the guide before choosing Start; the clock waits. Pause lets you take a break. Choose Chill, Standard or Expert before the run. Daily challenges use Standard.
Open the arcade and use this game’s Flight mode save button. It verifies the game files in this browser. Save while connected, then reopen Nuna Gaming before travelling. Browser storage can be cleared or evicted; export progress from Privacy & local saves for a personal backup.
This is a logic & numbers challenge. Explore this play style or compare controls, pace and comfort options. Difficulty describes mechanics, not an age recommendation.
Personal bests and completed challenges stay on this device. Favourites keep games on your shelf. There is no public ranking or account synchronisation.

Listen, remember, and answer a growing melody.
Puzzle · Basic · Keyboard and touch
Bend a beam through a tiny hall of mirrors.
Puzzle · Intermediate · Keyboard and touch
One switch. Five ripples. A garden of light.
Puzzle · Intermediate · Keyboard and touch
A perfectly balanced world is one transfer away.
Puzzle · Basic · Keyboard and touch
Every promise opens one route and closes another.
Puzzle · Intermediate · Keyboard and touch
Three witnesses. One forecast that fits the facts.
Puzzle · Intermediate · Keyboard and touch