Custom Development
Game development company in the UK for Roblox, mobile and brands
A UK company with its own games studio, APPS 365 GAMES. Every game starts with a design doc and a written quote, and gets tested in private before it goes live.
In short
A game development company designs, builds and publishes games for you. APPS 365 is a UK company whose studio, APPS 365 GAMES, builds Roblox, mobile and branded games, using a design doc, economy simulation, private test version and playtests before anything goes live, with a written quote before any work starts.
Why commissioning a game feels risky
A game is a bigger unknown than most software. You are paying for something people have to choose to play.
Games look expensive, and you cannot tell if the idea will work.
A prototype sprint gives you a design doc and a playable prototype, so you can test the idea before you commit to a full build.
Monetisation gets bolted on at the end.
An economy simulation at design stage checks how rewards, prices and progress balance before the game is built.
You are not sure how a brand gets on to Roblox.
We explain what each platform's advertising rules mean for your brand, and build to follow them.
Three kinds of game, one process
Roblox experiences
Designed, built and published on Roblox, from the first idea through to the live game.
Mobile games
Games for the App Store and Google Play, including the store listings and submission.
Branded games
Roblox experiences and mini-games for brands and campaigns, set up to follow each platform's advertising rules.
Monetisation planned early
In-game purchases, passes, ads or sponsorship are chosen at design stage, not added at the end.
What the studio can take on
Exactly what you get is set out in your written quote. Work can include:
- A design doc and an economy simulation
- A prototype sprint, with a playable prototype
- A full build in a private TEST version
- Playtests by bots and by people on real devices
- Upgrades to a game you already have
- Launch and growth: store art, trailers, short-form videos and ads
How a game gets made
- 1
Free call and quote
We scope your idea on a free call, then send a written quote before any work starts.
- 2
Design
A design doc and an economy simulation set out how the game plays and how its economy balances.
- 3
Build in TEST and playtest
The game is built in a private TEST version and playtested before any player sees it.
- 4
LIVE and after
Only then is it published to LIVE on Roblox, the App Store or Google Play, with any updates agreed in your quote.
Our own games and apps
These are our own products, not client work. The games are new, so we make no claims about their popularity. They show that we design, build and ship.
Pricing guide
Every game is priced by a written quote before any work starts, after a free call. Scope varies too much for one figure, so we do not publish a from price.
- A free call first
- Written quote before any work starts
- A prototype sprint can come before a full build
Why APPS 365
UK-based
APPS 365 LTD is registered in England and Wales, with a registered office in London.
Microsoft ecosystem specialists
We publish SharePoint and Microsoft 365 apps on Microsoft Marketplace, so we build on this platform every day.
We ship our own products
Apps, games and SaaS platforms of our own, live for anyone to try. ComponentSource Top 100 Publisher 2022, 2023 and 2025.
A fixed quote first
A free call, then a written quote before any work starts, so you know the cost and scope.
Full detail on Roblox and mobile game development, the studio's process and the games themselves is on apps365.games.
Visit apps365.gamesFrequently asked questions
How much does it cost to develop a game in the UK?
It depends on the scope, so every game gets a written quote before any work starts. A small prototype is a much smaller job than a multiplayer game with regular updates.
Can a brand make its own Roblox game?
Yes, we build branded Roblox experiences set up to follow Roblox's advertising rules. Whether it suits your brand depends on whether your audience is on Roblox and what you want them to do there.
How do games make money?
Games usually earn through in-game purchases, passes, ads or brand sponsorship, and the right mix depends on the platform and the audience. We choose at design stage and test the economy in a simulation. We cannot promise player numbers or earnings.
How long does it take to build a game?
It depends on the size of the game, so the timetable is agreed in your written quote. Starting with a prototype gives you something playable before you commit to the rest.
How do you handle child safety and age ratings?
We plan for younger players from the design doc, because Roblox and the app stores each set their own rules on age ratings, purchases and advertising. We answer each platform's questionnaires from what is actually in the build. Legal duties depend on your game and your brand, so take your own advice where it matters.
Tell us about the game you want made
A free 30-minute call, then a written quote before any work starts. No obligation.
