7 Puzzles Like Aquarium to Try Next

Once the aquarium puzzle gets its hooks into you, the natural next question is "what else scratches this itch?" The good news: Aquarium sits inside a whole family of grid logic puzzles that share its best qualities, edge clues you count against, pure deduction with no guessing, and that quietly satisfying click when a constraint resolves. Some are near-identical cousins, others share only the spirit, but all of them will feel like home if you love filling tanks. Here are seven puzzles like Aquarium to try next, sorted from closest match to broadest cousin. First, if you just want more water, play an aquarium puzzle.

The closest cousins: fill-to-level puzzles

1. Thermometers

If Aquarium has a twin, it is Thermometers. You fill thermometer-shaped tubes with mercury from the bulb upward, and row and column clues tell you how many cells in each line end up filled, exactly the count-matching idea Aquarium uses. The only real difference is the shape you fill: Thermometers uses one-cell-wide linear tubes, while Aquarium uses wider irregular regions where water spreads level across the whole width. If you like one, you will like the other. We dig into the full comparison in aquarium vs thermometers.

2. Battleships

Battleships is another grid puzzle driven by counts along the rows and columns. Instead of filling to a level, you locate a hidden fleet of ships, using the numbers at the edge of each row and column to tell you how many cells they occupy, plus a few given cells to anchor your deductions. It shares Aquarium's "satisfy every row and column count at once" tension, just with ships rather than water. Pure logic, single solution, no guessing.

Same DNA: fill-the-grid-from-clues puzzles

3. Nonogram

Nonogram (also called Picross or Griddlers) is the most popular relative of all. You shade cells in a grid according to number clues along each row and column, and a picture emerges. The clues work differently from Aquarium's, they describe runs of filled cells rather than totals, but the core experience is the same: read the edge numbers, deduce which cells must be filled or empty, and never guess. If you enjoy reasoning about cells from clues at the margins, Nonogram is a must-try.

4. Binairo

Binairo (Takuzu) is a fill-the-grid puzzle with a binary twist. Every cell is one of two states, and you complete the grid following simple balance and no-three-in-a-row rules. It shares Aquarium's clean two-state thinking, each cell is filled or it is not, and the same reliance on steady logic rather than trial and error. A great pick when you want something a little more abstract than water tanks.

5. Minesweeper

You know Minesweeper from the desktop classic, but as a logic puzzle it is a close relative of Aquarium's reasoning style. Numbers tell you how many mines surround a cell, and from those counts you deduce exactly which neighbouring cells are safe and which are dangerous. Like Aquarium, the well-formed version is solvable by pure deduction, training the same "this count forces that cell" instinct.

Broader cousins: region and placement logic

6. Star Battle

Star Battle swaps water for stars, but it shares one of Aquarium's defining features: irregular regions. You place a fixed number of stars in every row, every column, and every oddly-shaped region, with none touching. The interplay between irregular regions and row and column counts will feel instantly familiar to anyone who has wrestled with an aquarium's awkward, multi-column tanks.

7. Light Up (Akari)

Light Up, also known as Akari, asks you to place light bulbs on a grid so every white cell is illuminated, with numbered clues controlling how many bulbs sit beside them. It is less about counts per line and more about coverage, but it delivers the same pleasure Aquarium fans chase: a single logical solution, reached by careful step-by-step deduction with no guessing required.

Why these all feel like Aquarium

Pull back and the pattern is clear. Every puzzle here is a pure-logic grid puzzle with a single solution and no guessing, and most of them ask you to satisfy numeric clues sitting around the edge of the grid. Aquarium's particular charm is its water metaphor and its level-across-the-width rule, but the underlying skill, reading constraints and deducing cells with certainty, is exactly what these cousins reward too. Learn to love one and the whole family opens up.

So pick your next puzzle from the list, or stay in the water a little longer. Play an aquarium puzzle now, or if you are still finding your feet, start with the rules.

Frequently asked questions

What puzzles are most similar to Aquarium?

The closest are the other fill-to-level puzzles, Thermometers and Battleships, which also use row and column counts. Thermometers is almost a twin, filling tubes instead of regions. Beyond those, Nonogram, Binairo, Minesweeper, Star Battle, and Light Up (Akari) all share Aquarium's core appeal: a grid solved by pure deduction from clues, with one solution and no guessing.

What is the closest puzzle to Aquarium?

Thermometers is the closest. Both are fill-to-level puzzles where you fill shapes up to a height and match the filled count to row and column clues. The only major difference is that Thermometers fills one-cell-wide tubes from the bulb, while Aquarium fills wider irregular regions where water stays level across the full width.

Are there puzzles like Aquarium for nonogram fans?

Yes. Nonogram fans will feel at home with Aquarium because both fill grid cells based on number clues along the rows and columns. The clue style differs, Nonogram uses runs of cells while Aquarium uses totals, but both reward the same skill of deducing which cells must be filled or empty without guessing.

What other logic puzzles use irregular regions like Aquarium?

Star Battle is the standout, since it places stars within irregularly shaped regions while also obeying row and column counts, much like Aquarium's multi-column tanks. The skill of reasoning about awkward, irregular regions transfers directly between the two puzzles.