A game developer whose game reached 100,000+ players

Plain JavaScript with canvas or WebGL, three.js, Phaser when a 2D engine earns its place, React for games that are mostly UI, like Korona Krulów. Unity and Unreal are not my stack and I will say so on the call. Art, music and level design come from your team; I wire them into the game and the build. The browser side is on the JavaScript page.

I have studio credits: at Red Dot Games I built I Am Rich (2012), a C++ and DirectX game for Windows PC and the Windows Store with four-player networking, and a platformer engine with a live‑play editor for PC and Xbox 360. And launches fail around the game, a part I have shipped for years: 25+ apps with 3.7M+ downloads through store review, ads and in‑app purchases, an ad-supported chat app that ran for five years with 30,000 concurrent users, moderation and 37,000+ ratings, and Korona Krulów, 100,000+ players, built in my evenings. In 2026 I ship to four stores end to end: iOS, Android, macOS and Windows. If your game needs Unity or a console port, you hear that on the call, not after the invoice.

Yes. WebSockets with rooms in Durable Objects, authoritative server, client prediction only where the game needs it. I have run 30,000 concurrent users on my own infrastructure. Each room lives in its own Durable Object, so one hot room does not take the others down, and per‑IP and global rate limits plus a daily cost cap give a launch spike or a cheater a known maximum cost. The edge side is on the Cloudflare page.

Yes, including the review process, ratings and the first week of crash reports. React Native, Expo or a PWA depending on the game. Details on the mobile and desktop page.

Ads, in‑app purchases, localization into dozens of languages and store listings paid my bills for years across 25+ apps and 3.7M+ downloads. I will tell you which model fits your game before we build it.

Yes. It starts with the one‑week code audit ($1,080⁠–⁠$2,160 excl. VAT), the same one as on every page, focused on your game: the code, the loop, the netcode, the shop and the content pipeline, read by hand. You get a written report with risks ranked by cost and a plan: what ships first, what gets cut, what the launch needs. If it ends in a no‑go, you have spent one week, not a quarter, and you keep the report.

Your game stays yours. Code, CI and docs live in your repository and accounts from the first commit, the contract transfers the copyright to you in writing, and every project keeps a runbook. Hourly work stops whenever you say, and you keep everything done so far. On a monthly contract, notice is one month on both sides with a written handover. If I am ill, you hear it the same day and the plan moves, not the quality.

$36⁠–⁠54 an hour excl. VAT, depending on difficulty, invoiced in USD, EUR or PLN. A dedicated monthly contract is $7,500 (B2B, minimum three months). Hourly work has no minimum, so a small studio can buy one fix. Short on cash but sure of the game? Equity or a share of revenue is on the business partner page. The full table is on the pricing page.

From 3 November 2026, remote from Wrocław, Poland (CET): the same hours as Germany and France, about three shared hours with the US East Coast. Book the call and bring a build, even a broken one.

Browsers start the audio context suspended until the player interacts. Resume it on the first click or tap (Chrome autoplay policy).

Ship WebGPU with a WebGL fallback. Chrome, Edge, Safari 26 and Firefox on Windows and Apple silicon Macs support it, but Linux and Firefox on Android still have gaps as of October 2026 (WebGPU implementation status).

Stormgate’s online modes went offline at the end of April 2026 after its server host Hathora was bought by Fireworks AI and left game hosting (TechSpot). A backend you rent can disappear on someone else’s schedule. For browser and JavaScript games I move rooms to WebSockets on Durable Objects in your own Cloudflare account, with an authoritative server and code you own. My own chat app held 30,000 concurrent users on servers I ran. Unity and Unreal dedicated servers are not my stack. I have written game networking from the socket up: in 2012 at Red Dot Games I built I Am Rich, a C++ and DirectX game for Windows PC and the Windows Store, with its own Winsock protocol for up to four players.