eJaw builds exciting casino games that players love. Our skilled team creates fun, colorful titles for mobile and desktop. We use modern tools to craft games with smooth gameplay, cool bonuses, and big jackpots. If you want a classic fruit machine or a themed video game, we bring your ideas to life. Our focus is quality, speed, and player joy. Choose eJaw to launch a game that shines in the crowded casino market. Hire our developers to create a title that players can’t stop playing. Let’s build a game that boosts your brand. Contact us now to start!
Most studios that come to us have already tried the general-purpose route — developers who can code but don’t understand reel mechanics, volatility curves, or what a bonus round actually needs to feel like. Slot game development is a niche, and it rewards specialists. Our team has shipped titles across desktop, mobile, and live casino platforms. They know the compliance requirements, the math model handoff process, and what makes players come back for a second session.
Whether you need one developer to extend your existing team or a full build squad for a new title, we staff to the scope of your project — not the other way around.
Custom reel logic, symbol weighting, and pay-line systems built from scratch or integrated into your existing math model. Delivered clean and ready for QA.
Free spins, multipliers, pick-em games, cascading reels — we build the features that drive player engagement and session length, implemented to spec.
Desktop, mobile web, and native app — we develop once and optimise for each platform so performance and visuals hold up wherever your players are.
Integration with remote game servers, operator back-end systems, and third-party platforms. We’ve done it across multiple providers and know where the edge cases live.
We write code with certification in mind — audit trails, RNG documentation, and structured output that makes the submission process straightforward, not a scramble.
Older titles that need a performance upgrade, a platform port, or a feature refresh. We assess what’s worth keeping and rebuild the rest without starting from zero.
Technologies we work with:
There’s no shortage of development talent available for hire. The shortage is in developers who understand iGaming specifically — the compliance context, the math model handoff, the operator requirements. That’s the gap we fill.
| Ejaw | General Dev Freelancer | Generic Dev Studio | |
|---|---|---|---|
| iGaming-specific experience | ✓ | Rarely | ✗ |
| Understands math model handoff | ✓ | ✗ | ✗ |
| Compliance-aware development | ✓ | Sometimes | ✗ |
| Dedicated project manager | ✓ | ✗ | Sometimes |
| Scales up or down mid-project | ✓ | ✗ | Rarely |
| NDA & full IP ownership | ✓ | Negotiable | Negotiable |
01
Our developers have worked on titles that went live with real players and real money on the line. They’re not learning the industry on your budget.
02
A project manager handles all internal coordination. You brief once, get updates on a schedule, and don’t spend your day chasing status across multiple people.
03
Start with one developer embedded in your team, or bring in a full squad for a standalone build. We adjust headcount as your project moves through phases.
Bringing in outside developers only works if the handoff and collaboration process is tight. Here’s exactly how we run an engagement so there are no surprises on either side.
Step 01
We start by understanding your game concept, math model, target platform, and timeline. If you have a GDD or spec doc, we’ll review it before the call. By the end, we know what kind of team you actually need — not just what you asked for.
Step 02
We match developers to your project based on stack, platform, and feature requirements — not just availability. Once the team is confirmed, we do a kickoff session to align on architecture decisions, repo structure, and communication cadence.
Step 03
Work runs in two-week sprints with defined deliverables. You get a demo build at each sprint end, a written update from your project manager, and a clear view of what’s shipping next. No black boxes, no guessing.
Step 04
Before handoff, we run internal QA and prepare certification documentation. Code is delivered with inline documentation and a handoff brief so your team can maintain and extend it without needing us in the room.
A slot is not a one-developer job. The titles that pass certification and hold their RTP over billions of spins are built by a small squad in which every role owns a different part of the bet flow. When you hire slot game developers, this is the team you are actually staffing — and if one of these roles is missing, it shows up later as a math bug, a failed lab test, or a game that feels flat in the lobby.
Owns the paytable, reel strips, symbol weighting, hit frequency, volatility profile and target RTP — before anyone writes client code. Delivers a working math model (usually a spreadsheet simulation) that the engineers implement line by line.
Builds the reel engine, spin flow, win presentation and bonus choreography in PixiJS, Phaser or a custom WebGL renderer. Also owns the part players actually feel: frame budget on mid-range phones, asset loading, and spin timing that never stutters.
Wires the game into the remote game server: RNG, round generation, bet and win calls, wallet debits and credits, session state, jackpot pools and the audit trail a lab will ask for. See our custom slot game development service for how this fits the wider build.
Symbols, backgrounds, UI framing, Spine or After Effects animation for wins and features, plus the sound hooks. Art volume is the single biggest driver of schedule on premium titles, so this is the role you cannot compress with process.
Verifies the implementation against the math spec, measures RTP and hit rate over millions of simulated spins, runs the device matrix, and prepares the test scripts a certification lab will re-run. iGaming QA is not general software QA.
One point of contact for scope, sprint reporting, change requests and certification coordination. On a distributed build this role is the difference between a weekly update and a weekly surprise.
A three-person squad can ship a reskin or a light crash title. A full video slot with free spins and a signature feature normally runs five to seven people at peak, with math and art front-loaded and engineering following. If a vendor quotes you a single developer for a certified video slot, ask who is covering the math verification and the lab documentation — that work does not disappear, it just moves into your team.
There are three practical ways to bring slot development capacity in, and they fail in different ways. Staff augmentation fails when you have no one on your side to steer the backlog. Fixed price fails when the scope document was optimistic. Turnkey fails when the studio treats the game as finished at delivery instead of finished at integration. Pick the model that matches who on your side owns the decisions.
| Dimension | Staff augmentation | Fixed price per game | Turnkey studio |
|---|---|---|---|
| What you buy | Developers embedded in your team | A defined game, delivered | Game + art + math + integration |
| Billing basis | Monthly per specialist | Milestones, scope locked | Per game, all-in |
| Best fit | You have a producer and a math spec | Well-described single title | Operator without a game team |
| Scope changes | Free — the team just continues | Change request, re-quoted | Negotiated in the contract |
| Your internal load | High — you manage delivery | Medium — you accept milestones | Low — you review and integrate |
| Time to first commit | 1–2 weeks | 2–4 weeks of scoping first | 2–4 weeks, then sprint one |
Cost shape follows the model. Fixed-price slots in 2026 land in the €15,000–30,000 band depending on tier, because the scope is priced into the number. Augmentation is a monthly squad rate, which is cheaper per seat but assumes someone on your side is already doing the scoping and the math review. Turnkey carries the highest headline price because it absorbs the roles you would otherwise have to hire — typically math design, art and certification support.
In practice most operators start fixed-price to de-risk the first title, then move to a small augmented squad once the pipeline is real and the math team exists. That sequence also keeps your IP, your code and your math spec inside one repo from day one — which matters more than the pricing model when the second game starts.
iGaming experience is not implied by a game development portfolio. A Unity developer who shipped mobile F2P titles has never had to prove an RTP figure to a lab, and that gap is where projects lose months. Our screening is built around the parts of the job that are specific to real-money gambling.
Candidates get a paid task built from a production problem — a reel engine that has to stay deterministic under a given seed, a spin flow with a resumable state, or a wallet callback that must be idempotent. We review the code, not the CV.
The candidate implements a short volatility spec and paytable from a spreadsheet. We check whether hit frequency and payout distribution match on simulation, including the edge cases — scatter triggers inside free spins, cap behaviour, rounding at the bet-100 level.
Outcomes must never be decided client-side, every round must be reconstructible from the server record, and logs must survive an audit. Developers who have only built casual games tend to build these in later; we screen for them up front.
NDA and IP terms signed, repo and tooling access, math document handoff, definition of done agreed, and a first two-week sprint that produces something verifiable. We treat the first two weeks as a paid trial: if the fit is wrong we replace the specialist within ten working days.
Once onboarded, the team runs against the same slot game development lifecycle we use on our own titles — design and math locked before production, art and engineering in parallel, QA against the spec, then certification paperwork prepared while the build is still in the lab queue. You get the sprint board and the build, not a status call layered over both.
There is no fixed price for a slot, but the market does cluster. The tiers below are the ranges we quote for a base game build in EUR, before per-market licensing, certification fees and platform integration. They are the same numbers we publish in our slot development service scoping documents, and they assume a real math model and a real art pass — not a template reskin with the serial numbers filed off.
| Tier | Typical scope | Indicative budget | Timeline |
|---|---|---|---|
| Classic slot, reskin, crash or lottery game | 3–5 reels or a simple mechanic, fixed paylines, light animation | €15,000–20,000 | 2–3 months |
| Mid-complexity video slot | 5×3 or 5×4, free spins, one or two signature features | €20,000–25,000 | 3–5 months |
| Premium slot | Megaways-style or hold & win mechanics, jackpots, full animation | €25,000–30,000+ | 6+ months |
Those figures cover development. They do not cover the cost of going live in a regulated market: certification is charged per jurisdiction and renews, brand royalties apply on licensed IP, and aggregator or RGS integration is a separate workstream with its own fee and its own queue. Budget a further 20–40% of the build cost if you are launching in more than one regulated market in the same year.
If you hire a dedicated squad instead of buying a fixed scope, monthly billing in 2026 typically runs €18,000–35,000 for a four to six person slot team, and roughly €8,000–12,000 for a two-person slice (developer plus artist) supporting an existing product. The spread comes from seniority mix and how much math work you bring in-house.
Timelines move for three reasons: art volume, revision rounds, and certification queues you do not control. A game can be code-complete in ten weeks and still take another six to clear a lab and an operator’s integration window, and no amount of development speed compresses that. Plan the launch around the lab, not around the sprint. If a vendor returns one flat number before seeing your feature list and target markets, read it as a starting position rather than an estimate.
For most projects, we can have a team confirmed and ready to kick off within one to two weeks of a signed agreement. If you have an urgent timeline, tell us upfront — we’ll be straight with you about what’s realistic.
Either. We can embed developers directly into your team and work inside your existing workflow, or we can take ownership of a module or full project independently. Most clients do a mix of both depending on the phase.
Yes. We work from client-provided math models regularly. Our developers know how to read a volatility spec and implement it faithfully — including edge cases that often get missed by developers who don’t have an iGaming background.
Primarily HTML5 for browser-based delivery across desktop and mobile. We also work in Unity for WebGL builds and native app targets. If you have a specific platform or RGS requirement, bring it up in the scoping call and we’ll confirm fit before any agreement is signed.
You do. Full IP transfer is standard in every contract. We sign an NDA before work begins and the ownership terms are written clearly — no ambiguity about who holds the rights to what we build.
Yes. Ejaw covers both game development and game art, so if you need a full production team — developers, artists, animators, UI designers — you can source all of it through one engagement rather than managing multiple vendors.
Fixed-price slot builds in 2026 typically run €15,000–20,000 for a classic slot, reskin, crash or lottery game, €20,000–25,000 for a mid-complexity video slot with free spins, and €25,000–30,000+ for a premium build with megaways-style or hold & win mechanics. A dedicated squad is billed monthly instead, typically €18,000–35,000 for a four to six person team. Certification, licensing and aggregator fees are charged separately per market.
Two to three months for a classic slot or a reskin, three to five months for a mid-complexity video slot, and six months or more for a premium title with heavy animation or licensed IP. Certification and operator integration add further weeks and run partly in parallel, but they are a scheduling constraint you cannot compress by adding developers.
Fixed price per game, because the scope is the thing you are least able to manage yet and the vendor carries that risk. Move to staff augmentation once you have a producer, a math spec and a pipeline — at that point the flexibility of a monthly squad is worth more than the certainty of a fixed quote.
Yes. We design the paytable, reel strips, volatility profile and RTP target as a simulated math model, implement it server-side with a certified RNG, verify hit frequency and payout distribution over millions of spins, and prepare the test scripts and documentation a lab will re-run. We also work from a math model you already own if it is finished.
Yes. We build against your RGS or aggregator API — wallet debits and credits, round events, settlement callbacks, session and jackpot state — and we can also deliver to a standard RGS contract if you have not chosen a platform yet. Integration is scoped as its own workstream with its own acceptance tests before the game goes to a lab.
Tell us about your title — platform, stack, timeline, and where you are in production. We’ll come back with a straight answer on fit, team size, and cost. No commitment required.