Sainokawara

Stacked, then toppled. That was supposed to be all there was to it.

"Sai no Kawara" is a free browser idle/incremental game inspired by the Japanese folk legend of "Sai no Kawara" (the Riverbed of Sai).

Children who died before their parents stack stones, and demons topple them. We've depicted this endless cycle as a game that grows little by little.

What you build will eventually crumble.

The stones you stack will be toppled when demons appear. But the lost stones become "impermanence" and transform into power that summons new Jizo statues.

As Jizo statues increase, the speed of stacking stones rises, and landscapes—windmills, torii gates, bridges—are born in the once-empty riverbed.

There's the "foresight" to collapse your tower yourself just before demons arrive, the "momentum" to stack stones continuously, lanterns flowing down the river, rare stones and visitors. We've also prepared "Today's Demon," where you compete against a different demon each day.

And after stacking for a long time, "samsara" and "rebirth" await you.

Stones and Jizo statues—you release everything you've built, gain merit and enlightenment, and begin stacking again. As the world changes to the Hell Realm, the Hungry Ghost Realm, the Asura Realm, and so on, the rules and landscapes transform.

Memories left on the riverbed, letters arriving from somewhere, stories told little by little. Further ahead in time, there are new accumulations like prayer beads and "kalpas."

An immeasurably long span of time beginning from an empty riverbed.

No matter how much you stack, it will eventually crumble.
Yet even so, the fact that you stacked it doesn't disappear.

Experience this impermanence and change at your own pace.

Free, no registration required, no installation needed.
Play in your browser on PC or smartphone.

Supported languages: Japanese / English / Traditional Chinese / Simplified Chinese / Korean