It seems to us that we have unlimited access to it. All you have to do is turn on the tap or buy a bottle of it in any store. Fresh water, the resource that is not only essential to life but, to some inhabitants of our planet, hardly accessible.

It is estimated that 663 million people in the world live without clean water.

Water Games is a joint initiative of the International Institute for Applied Systems Analysis (IIASA) and the Centre for Systems Solutions (CRS) to celebrate the World Water Day 2017.

You may play one or several of the games on water challenges here.  The games differ with respect to time required to play, the number of participants and the type (computer, board, or role-play ones).