A portfolio, not a pilot
Six finished cluster-pays titles you can play in this browser right now. Every one of them is whole — math, art, sound, copy, client and server — and none of it is a mock-up waiting for a signature to become real.
Slot content for casino operators and aggregators
Original slots, built whole — the math, the game, and the server behind them.
ByteClimbers is an independent studio supplying casino operators and aggregators with cluster-pays titles we own end to end. Our own math engines, our own art, our own game server — one integration, and the whole catalogue lands in your lobby.
- 6
- finished titles to play
- 3
- proprietary math engines
- 96.0–96.2%
- modelled RTP
- 12,000×
- top max-win cap
What we supply
Content that arrives finished
A game is only content once the mathematics is settled, the client behaves on a five-year-old phone and the wire protocol does what the integration document says. We call a title finished at that point, not before it.
Our own math
Three proprietary engines, modelled and simulated in-house against a target RTP, a volatility profile and a hard max-win cap. The RTP is a number we set rather than inherit, and every model comes with the simulation runs behind it.
Integration in days
One standard RGS wire protocol, one set of endpoints, the same for every title. Take the first game and the sixth costs you nothing new — and the integration document, the demo build and a technical contact come with it.
One build, every screen
Desktop and phone out of a single build, portrait included, with the design box measured from the real viewport rather than assumed — so a tall phone gets a whole game instead of a letterbox with the console squeezed underneath.
A release cadence you can plan around
A proven engine becomes a new title in weeks rather than quarters, because the mathematics is already settled and only the world above it changes. Fresh content lands on a schedule instead of an apology.
One supplier, no subcontractors
The model, the client and the game server are all ours. Nothing is licensed in from a third party, so a fix takes a day rather than a support ticket into somebody else’s roadmap.
The catalogue
Six titles, playable in a click
Every game below is ours from the distribution up: the model, the art, the sound, the copy and the client. Click any poster and it opens here and now — play money, no signup, nothing to install.
Approach
Built to be inspected
A slot is a money-handling machine, and sooner or later somebody — your technical team, your support desk, a player — asks it a hard question about what it just did. Everything below exists so that question has a straight answer.
Nothing in the stack is borrowed
Math, client, art and server are built in one house. There is no vendor SDK underneath, which means no third party between your lobby and a bug fix, and no licence that can be renegotiated out from under a title you have already integrated.
Determinism you can audit
Our suites drive the real payload a player receives, answered by rounds mined out of a running server. That is how a max-win round, a triple retrigger or a feature cut short by the cap gets asserted rather than hoped for — those are one round in tens of thousands.
Money is arithmetic, not appearance
Every payout is checked as a number against the wallet, in every supported currency — including the ones with no minor unit and the ones that are not ISO codes. What the player is shown is what the ledger did.
Every round can be replayed
A finished round can be reopened read-only and watched again exactly as it happened, without a session and without touching a wallet. Support questions get an answer from the round itself rather than from a reconstruction of it.
Built with
- TypeScript
- React 19
- PixiJS 8
- Vite
- Next.js
- C#
- Java
- Go
- Python
- Postgres
- Redis
- Kafka
- Nginx
- Docker
- Playwright
The studio
A studio that starts with the numbers
ByteClimbers is an independent slot studio in Sofia. We design the mathematics of a game first — the distribution, the volatility, the shape of the tail — and only then decide what it looks like when a cluster lands. Six titles have come out of that order of operations so far, on three engines that are entirely our own.
We are deliberately a supplier rather than a workshop. Operators and aggregators take our games; we keep the models, the code and the roadmap, which is what lets us answer a question about a paytable the same afternoon it is asked and turn a fix around the next day.
The studio was founded by Zlatin Terziev, who came to gambling through mathematics rather than the other way round: Sofia’s High School of Mathematics, then a first-class degree in Computing Systems from the University of Warwick, and a first job writing casino games in London before he had finished it.
The fifteen years since have been spent on systems where the numbers have to be right the first time — front-office technology at the investment-banking headquarters of BNP Paribas, real-time odds and bet-acceptance platforms carrying tens of thousands of decisions a minute, and delivery leadership at one of Europe’s larger slot suppliers. ByteClimbers is what happens when someone who enjoys the distribution that much finally gets to design both halves of the game.
“A slot is a probability distribution wearing a costume. Get the distribution right and the costume becomes the fun part.”
Contact
Put these games in your lobby
Tell us what your lobby is missing and we will send the full game sheets, the demo build and the integration document — and a commercial conversation can start from there.
ByteClimbers · Sofia, Bulgaria