Ranked: 4 US Chart Mobile Games and 1 Indie Worth It

I opened the US charts to see what people are actually playing, and the number one free game was cat sudoku. This post takes four games from the top of the US Google Play free chart as of September 7, 2026, works out who each one fits, and adds one more that is not on the chart but serves the same purpose.

One disclosure first. Only the last pick was played long-term. The other four are judged from chart position, store listing, install count and rating. That is why each entry separates what the game is from what to check before installing. And the fourth pick is not on the chart at all, which I explain when I get there.

What sits at the top of the US chart in September 2026

The snapshot date is September 7, 2026. Charts move daily, so the useful signal is not the exact rank but what kind of game is winning. Right now that is puzzles, with one survival strategy game mixed in.

1. Meowdoku! — sudoku wearing a cat costume

Number one on the US free games chart on September 7, 2026. Oakever Games. Over 10 million installs and a rating in the 4.7 to 4.8 range, the highest of anything in this post.

• What it is: Sudoku where you place cat tiles instead of numbers. The rules are ordinary sudoku, only the skin changed.
• Who it fits: People who want to think without a clock running. You can stop mid-board any time.
• Check before installing: If you already dislike sudoku, a cat on top will not fix that. Cute lowers the barrier to entry, it does not change the genre.
• Free-to-play feel: Puzzle games in this tier commonly trade hints for ad views. Check the ads disclosure on the listing first.

2. Block Blast! — the block filler that is hard to put down

Number ten on the chart. Hungry Studio.

• What it is: Place blocks on a grid to clear lines. Nothing falls on a timer, you decide where each piece goes.
• Who it fits: Anyone looking for something to open when their hands are idle. Rounds are very short.
• Check before installing: There are dozens of near-identical games in this category. If you already have one, a second adds little.
• Free-to-play feel: Money is not required to progress, but ad frequency runs high.

3. Whiteout Survival — running a city in a frozen world

Number fourteen on the chart. Century Games.

• What it is: Gather survivors and build a settlement through extreme cold. A completely different weight class from the two above.
• Who it fits: Players who enjoy the rhythm of logging in daily to queue construction and research.
• Check before installing: This genre is usually designed to ask for both time and money. If ten minutes a day is your budget, the two puzzles above fit better.
• Free-to-play feel: Progress without spending is possible, but the gap becomes visible in competitive brackets.

So why is a cat sudoku number one?

Look across the top of the chart and the pattern is clear. The rules need no explanation, a round is short, and failing costs you nothing. That is true of sudoku and of block filling. It is not a US-specific pattern either. Whether the player is on a train or a sofa, games that survive a short gap in the day are the ones that win.

There is one split inside that. Some people want to open something in a short gap but do not want to concentrate fresh every time. Puzzles ask for focus on every launch. What those players are looking for is the idle genre, and idle games sit thick just below the top of the chart rather than on it.

If what you want is idle

4. KickCat — a cat kicking a ball at dogs

This is the only entry here that is not on the chart. I included it because the three above do not answer "short sessions, but I do not want to concentrate every time." It is also the only game in this post I have played long-term.

• What it is: An idle shooting game where a cat in a red helmet kicks a ball to defeat monsters. The fun detail is that across all 300 stages, every enemy is a dog.
• First ten minutes: There is nothing to control. The cat kicks on its own, and your only decision is picking one of three skill cards each stage. There are 27 skills, so no two runs build the same way.
• Three days in: You wake up and the wall you were stuck at yesterday is gone. Gold and Churu accumulate per minute while you are away, and that stops at 12 hours, so morning and evening is enough.
• What I liked: The premise that the cat wears the helmet because it is a coward. It squeezes its eyes shut when scared, and the helmet lets it charge anyway.
• What is missing: No iOS build yet. And getting to late Hard difficulty without spending is honestly a long road. Short sessions are genuinely good, but seeing the end takes time.
• Free-to-play feel: Free on Google Play with in-app purchases and ads. There are 24 balls and a gacha, but a 100-pull pity means it is not left entirely to luck. The exact numbers are published on the item database straight from game data.

5. Egg, Inc. — the classic that shows what idle means

Search "idle game" and this still comes up near the top. Auxbrain. Over 10 million installs, rating around 4.6.

• What it is: An idle chicken farm. It carries almost the whole grammar of the genre.
• Who it fits: Anyone trying idle games for the first time. Nothing better for finding out whether the genre suits you.
• Check before installing: The art does not look like a 2026 release. What it has instead is a structure that has held up for years.
• Free-to-play feel: Close to the idle standard. If you are not in a hurry, spending rarely comes up.

So what should you install

• If you get five minutes at a time: Meowdoku or Block Blast. Open, play a round, close.
• If even opening it feels like work: KickCat or Egg, Inc. The main pleasure is collecting what piled up while you were gone.
• If you want something to tend daily: Whiteout Survival, as long as you start knowing that ten minutes a day will not be enough.

Cat games compared against each other are in a separate post. Leave an idle game running tonight and by morning there are 12 hours sitting in the vault.

FAQ

What is the number one mobile game in the US right now?

As of September 7, 2026, the top free game on the US Google Play chart is Meowdoku! by Oakever Games. It is a sudoku puzzle played with cat tiles, with over 10 million installs and a rating in the 4.7 to 4.8 range.

What genres dominate the top of the US chart?

Puzzles. The September 7, 2026 snapshot has several sudoku and block-filling games near the top, with a survival strategy game mixed in. What they share is that the rules need no explaining and a round is short.

Do idle games keep earning while the app is closed?

They accumulate, but usually with a ceiling. KickCat adds gold and Churu per minute while closed and stops at 12 hours. Time beyond 12 hours adds nothing, so collecting roughly twice a day loses nothing. The progression systems are laid out in the game guide.