Ocean Run

Based on the experience of building a sandcastle and fighting against the rising tide.

One player plays as the land. They must build a bridge out of sand and get all of their people across.
The other player plays as the ocean, targeting areas of the bridge and eroding them with waves to stop the player from getting across.


Set Up:

Taking the basic grid map, start with part of the bridge pre-built next to the start point. Use the white stones to indicate sand.

Steps in the game:

  1. The ocean player rolls 1d4 and may then place that many blue water stones adjacent to any sand stones.
  2. The land player also rolls 1d4. If their number is less than the ocean it becomes the ocean's number or if it is higher they keep the higher number.
  3. The land player places that many sand stones laying down new bridge or building up regions of the bridge. They may also choose to place people or move people by using 1 or more of their actions instead of building more bridge.
  4. EROSION!: After the land player has placed and moved, the ocean player can choose to "cash in" any 2 or more ocean stones that are adjacent to both sides of a sand stone to destroy that sand stone. If there are more sand stones above, those stones move down one level.
  5. Repeat.

Moving People:

  • People are represented by dice that are placed on top of a sand tile.
  • If the sand tile they are on drops down 1 level they drop with it. If there is no sand tile underneath them, the people drown.
  • It costs no movement to move horizontally but moving up or down 1 level takes 1 movement.
  • 2 groups of people who land on the same stone become 1 group. It costs the same amount of actions to move a large group as it does a small group but the loss is higher if they drown.


  • Consider having just 1 "person" that starts already on the bridge rather than a group of people. If this person drowns then the ocean player wins but if they get across safely the land player wins.
  • Could consider only being able to build near where people are located.
  • Have units that the ocean can play instead of placing water stones if they choose. Units such as fish or crabs.

Made By:

  • Lanz Singbeil
  • Scott Inglis
  • Jingyi Hu
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