Hi! I'm Bart Bonte, a Belgian independent game designer and bontegames.com is where I blog about new interesting browser and mobile games. My own games are all in the left column (or at the bottom of this page on mobile). More info about me and my games on bartbonte.com.
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May 19, 2025

undertoe [browser]

Tic-tac-toe... of the deep: Undertoe, a puzzle game by Irregular Hex.

16 comments:

  1. I guess if I could place 4 o's at once, I'd win often too

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  2. Wow this is difficult, gave up after a few levels

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  3. You have to wash the Os away and try and end up with 2 Xs so that you can place an X and win.

    The crab, fish, and turtle can help but can make it harder as well.

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  4. Can’t get past level 4.

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  5. Once you figure out the rules, this game is awesome. Especially the later levels give much satisfaction when you solve them.

    Rules: You win if there are 3 Xs but no 3 Os in a line.
    After each of your move O will block any of your threats. With its move it will destroy plants but not stones (if its move would destroy an animal, your move before it is illegal and will be reverted).
    With a right click the water will go down (not through stones) and erase any Xs and Os. A sandhill blocks the water exactly once but is destroyed.
    Crabs: Will flee in a straight direction from your move until it hits an obstacle. Crabs are not affected by the water.
    Fishes: Will flee exactly 2 cells in a straight direction unless it's blocked earlier. Fishes are washed away by the water but plants can protect them.
    Turtles: Will move one space forward when clicked on. Turtles are not affected by water.

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    1. Ahh I didn't realize the three O's had to be broken up for the three X's to count. Went back and am now on the last level

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  6. Level 6 on the southern path has me stumped.

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    1. Gotta make it so that the wave washes out a column that's detrimental to you.

      Is there a thing that happens to the sand dunes when you get two in a row? How to place your Xs so that doesn't trigger, then trigger it?

      (Use the bottom row sides)

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  7. Hint: both the crabs and the fish can move diagonally, as well as forward/back/up/down.

    Also, someone please, please do a walkthrough for the very final level (on the far right of the map with an X), before I drive myself crazy trying to figure it out!

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    1. I have just completed this level and it took me a while. you have to get rid of some of the weeds, get the fish in the right place to stop the crab from going too far, and you need to have setup 2 Xs and an O for the crab to remove the O on its move up to the lava rock area.

      I'll try and do a walkthrough video later

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    2. Here is a link to the Walkthrough I created

      https://youtu.be/mkkrsNKA2uE

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  8. This comment has been removed by the author.

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  9. Thanks @Meblin, you're the best!

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  10. Great game! Really satisfying. Multiple times I was on the edge of giving up, but I always managed to figure it out by seeing some possibility that just hadn't occurred to me (very satisfying) or plugging away long enough to see how it must go and then some trial and error (less satisfying but good enough).

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  11. Thank you Meblin for the walkthrough of last level! I enjoyed this game all the way, but the last one was too hard.

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