I Built a Free Collection of Focus Games That Runs Entirely in the Browser

I recently built DailyFocus Games, a free collection of short browser-based games for practicing attention, memory, reaction speed, and cognitive control.

The idea started from a very simple question:

Can focus practice feel more like playing a quick game than starting a complicated training program?

I wanted something you could open in a browser, play for a few minutes, and leave.

No account.

No installation.

No onboarding flow.

Just choose a game and start.

What is DailyFocus Games?

DailyFocus Games currently includes short interactive exercises such as:

• Stroop Test
• Schulte Table
• Visual Search
• Reaction Time
• Go / No-Go
• N-Back
• Visual Memory
• Sequence Memory
• Number Memory
• Task Switching

Users can practice any game individually or start a Daily Challenge made up of several different games.

The project is available here:

👉 DailyFocus Games

Why browser-based?

A lot of cognitive and focus apps immediately ask users to:

• Download an app
• Create an account
• Start a subscription
• Complete onboarding
• Track a long-term program

That can make sense for some products, but I wanted DailyFocus to feel more lightweight.

The core workflow is simply:

Open → Choose a game → Play

This also means the games work across desktop and mobile devices without installing anything.

Designing very short games

One interesting part of the project has been deciding how long each game should last.

A focus game doesn't necessarily become better just because it lasts longer.

In fact, some exercises work better as short challenges.

For example, a reaction-time game can give useful feedback in seconds.

A Stroop task can become repetitive if a session is too long.

A visual-search game needs enough rounds to feel challenging without turning into a chore.

So instead of forcing every game into the same session length, each game has its own natural rhythm.

Different games practice different things

I also didn't want the site to become a collection of games that all feel identical.

Different tasks emphasize different skills.

For example:

Stroop

You need to respond to the color while ignoring the written word.

This creates interference between two competing signals.

Schulte Table

You visually search for numbers in sequence across a grid.

The challenge is scanning efficiently without losing your place.

Go / No-Go

You respond to some signals while withholding your response to others.

N-Back

You compare the current stimulus with something shown several steps earlier.

Visual Search

You find a target among distracting items.

The mechanics are simple, but each game creates a different kind of mental challenge.

A Daily Challenge instead of a fixed routine

Another feature I wanted was a Daily Challenge.

Rather than asking users to repeat exactly the same sequence every day, DailyFocus can combine several short games into one session.

This makes the experience feel less repetitive while still keeping it simple.

You can also ignore the Daily Challenge completely and practice any individual game whenever you want.

I think that balance is important.

The site suggests a starting point, but it doesn't force users into a rigid program.

No account required

DailyFocus currently doesn't require an account.

This is intentional.

For a lightweight browser game, I think requiring registration before someone can play adds unnecessary friction.

Users don't need to provide an email address just to try a Stroop test or reaction-time game.

If the product eventually needs cross-device history or deeper progress tracking, accounts might make sense.

For now, the priority is making the games immediately playable.

Keeping the claims realistic

Another important decision was how to describe the project.

DailyFocus is not a medical treatment or diagnostic tool.

I don't want to claim that playing a browser game will treat ADHD, dramatically increase intelligence, or produce guaranteed cognitive improvements.

The site is better described as a collection of short focus and cognitive exercises.

Users can play, challenge themselves, and practice different types of attention-related tasks.

That's enough.

Building small games as web products

This project has also reminded me why I like browser-based tools.

A user can discover a page from search, open it, understand the interaction, and start using it immediately.

There is something nice about software that doesn't require commitment.

No installation.

No account.

No setup.

A game can simply exist at a URL.

What's next?

I'm continuing to add and improve games while trying to keep the overall experience simple.

The main things I'm currently thinking about are:

• Making individual games more enjoyable
• Improving mobile interactions
• Better difficulty progression
• More variety in Daily Challenges
• Adding new game mechanics without making the site feel cluttered

If you want to try the project:

👉 DailyFocus Games — Free Focus Games

I'd especially be interested in feedback on which game feels the most engaging and which one you'd improve first.