Number Master: Run and merge
Action · KAYAC Inc.
Number Master: Run and merge screenshots
Number Master is a free action game from KAYAC Inc., and its premise is about as clean as mobile games get: you control a number, you make it bigger, and you try to reach the end of a stage. The hook is the growth itself. Watching a small figure turn into something that can knock down walls is the whole point, and that is the main reason to consider it.
The game has been installed more than 100 million times and holds a 4.4 average across roughly 200,000 ratings. Those numbers suggest the formula lands with a lot of people. It is free to download, carries ads, and offers in-app purchases.
A stage built around size
Each stage is a course you cross by swiping. Your number moves in the direction you swipe, and the stage is populated with other numbers. The rule that governs everything is simple: hit a number smaller than yours and you absorb it, adding its value to your own. Hit one larger than yours and your run ends there, sending you back to the start.
That single rule creates the tension. You are always scanning ahead, deciding whether a nearby number is food or a wall you cannot survive. Electric saws, bridges and ditches also appear as obstacles to avoid on the way, so movement is not only about the numbers themselves.
The developer frames the objective as making big numbers to reach the goal. In practice that means the stage is a series of decisions about which numbers to chase and which to leave alone, with the cost of a mistake being a full restart.
How a run unfolds
A typical attempt starts small and cautious. You pick off the numbers you can safely absorb, building your value step by step, and the early part of a stage is mostly about finding a safe route through the crowd. As your number grows, the set of things that can kill you shrinks, and the run becomes more aggressive.
Many walls wait at the goal, and you break them one by one with a big number. That gives each stage a clear finish line rather than an endless drift. You are not just surviving; you are accumulating enough value to punch through whatever stands between you and the end.
Because a larger number ends everything, positioning matters a great deal. A run can fall apart in a single wrong swipe, which is what gives the mode its bite.
Why the loop holds attention
The appeal here is escalation. Numbers getting bigger is a satisfying thing to watch, and the game leans into that by making growth the measure of progress. Each absorbed number is a small win, and each wall broken is a visible one.
The structure also invites repeat attempts. A failed run is short, the rule is easy to understand, and the next attempt starts immediately. That combination is what tends to keep players coming back to this style of game, and the install and rating figures suggest it works for a broad audience.
The premise is narrow by design, and for players who like a clean arcade loop, that focus is the draw.
Ads, purchases and the price of entry
Number Master is free to download. It contains ads and offers in-app purchases, so the experience is supported by both. The game carries a Teen content rating.
The most recent update, version 2.3.6, is described as minor improvements. The game launched in July 2022 and has been updated since.
A simple arcade loop worth trying
Number Master is easy to recommend to players who want a quick, readable challenge with a clear goal. The rules take seconds to grasp, the growth is satisfying, and the walls at the end give each stage a purpose. If you like arcade games where a single mistake resets everything, this fits that mold well.
It is less suited to anyone looking for a different kind of experience. What the developer has built is a focused game about making a number big enough to break through, and it does that one thing. For a free download with ads and purchases attached, that is a reasonable trade.
The short verdict
A focused, free arcade game about growing a number big enough to smash through walls.
What's new in version 2.3.6
2030600 (v2.3.6) Minor improvements
App specs
- Version2.3.6
- UpdatedSeptember 19, 2026
- Downloads100M+
- RequiresAndroid 6.0+
- PriceFree
- Age ratingTeen
Number Master: Run and merge: frequently asked questions
How do you play Number Master?
You swipe to move your number around the stage. Hitting a smaller number absorbs it and increases your value, while hitting a larger one ends your run. The aim is to grow big enough to reach the goal and break the walls waiting there.
What happens if you hit a bigger number?
The number is gone, and the run starts again from the beginning. That is the core risk in every stage, so you have to read the field before you move. Avoiding electric saws, bridges and ditches adds to the challenge.
Is Number Master free?
Yes, it is free to download. The game contains ads and offers in-app purchases, so there are ways to spend money inside it. It carries a Teen content rating.
What is at the end of a stage?
Many walls are waiting at the goal. You break them one by one using your big number, and the developer describes seeing the world beyond the goal as the reward. That gives each stage a definite finish rather than an open-ended run.
Has Number Master been updated recently?
Yes. The latest version is 2.3.6, described as minor improvements. The game originally released in July 2022 and has continued to receive updates since.
Pros
- Free to download
- Simple swipe controls
- Clear goal at end of each stage
- Satisfying growth and escalation
- Updated regularly
Cons
- Contains ads
- Offers in-app purchases
- One mistake ends the run
- Narrow premise with little variety
Download Number Master: Run and merge
by KAYAC Inc.
Free · In-app purchases · Contains ads · Official store listings