Jawless Fishtank
Raise your own Sacabambaspis in a very patient aquarium
The Sacabambaspis is a real jawless fish from the Ordovician period, it looks faintly appalled at all times, and it is now something you can keep as a pet.
Jawless Fishtank is a casual idler built for our friends at Jawless Fish. You buy baby fish, feed them, watch them grow, and decide whether to sell them on or get attached. Coins accumulate while you are away. Health does not.
Built with Jawless Fish
Jawless Fish came to us in March 2025 asking whether a game could work as a marketing piece for their store. Jawless Fishtank came out of that conversation. The demo shipped that May, it went out on the Jawless Fish booth at Phoenix Fan Fusion in June, and the full game launched on 30 July 2025 for Steam, Google Play, and iOS.
It is not part of the Aldia series — different world, different mood, considerably fewer bombs.
Highlights
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Hatch, feed, grow
Start with baby jawless fish and raise them to adulthood. Keep feeding them or their health quietly drains away while you are not looking.
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Sell them or keep them
Adults can be sold for coin, or you can see how long you are able to keep one alive. Both are valid. One is harder.
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Exotic food, exotic reactions
Once your bank can stand it, start feeding them stranger things. Different foods pull different reactions and build friendship faster.
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Name them, which is a mistake
You can name your Sacabambaspis. You will then be significantly more careful about feeding schedules.
Screenshots
