"I was pleased with RaftLabs team quality, consistency and execution."
Dr. J. Ayo Akinyele
President, Co-Founder, Yeletech Security and Bolt
Game Backend Development
The game backend that turns a multiplayer game into a live service.
Game engines are excellent at rendering and physics. They are not server infrastructure. The backend that handles player accounts, persists game state between sessions, matches players for multiplayer modes, allocates game servers, and keeps the system running under peak load is a separate engineering problem that compounds in complexity as player counts grow. Custom game backend development means the infrastructure is designed for the concurrency target your game requires, not the prototype that was fast to ship.
Player profile and persistence layer designed for the read/write patterns your game creates
Session management and real-time state synchronization for multiplayer modes
Matchmaking infrastructure integrated with server allocation
Game server orchestration with auto-scaling for launch day and live event traffic
Bring the problem, the current workflow, or the existing code. We reply with a practical next step within one business day.
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The brief
Start with what is not working.
Good software decisions begin with the constraint, not a list of features or a preferred technology.
01
Player data scattered across a homegrown SQLite database and a Firebase project that was never designed for the access patterns a live game creates at scale?
02
Session management failing at peak concurrent player counts because the prototype architecture never had horizontal scaling designed in?
Plain answer
RaftLabs builds custom game backend infrastructure for game studios: player profile systems, session management, real-time matchmaking, game server orchestration, and the API layer game clients use regardless of engine. A focused v1 backend comes with full source-code ownership; the full live-service backend grows from there.
What to remember
- Latency is a retention lever, not a nice-to-have. Competitive players start losing measurably above roughly 100 to 150ms and notice lag near 80ms (WPI game-networking research), which is why we run authoritative servers with regional allocation rather than a single region.
- We reach for Agones on Kubernetes only when you genuinely run authoritative dedicated servers. For turn-based, async, or lightly-synced games, a managed matchmaker plus serverless is cheaper to run and far less to operate.
- Matchmaking is a wait-time versus match-quality tradeoff. TrueSkill 2 balances teams, but the real tuning is how long a player waits for a fair match before you widen the skill band.
Launch day is the worst possible time to discover the backend never scaled.
A studio builds incrementally. A quick player auth here. A Redis session store there. A matchmaking queue that never gets load tested, because there was always something more urgent.
Then launch day arrives and thousands of players connect at once. Sessions drop. Matchmaking stalls. The prototype architecture that was fast to ship was never designed for the concurrency the game just found.
The backend is a separate engineering problem from the game itself. It compounds as player counts grow, and it surfaces at the one moment you cannot afford it to.
Game engines are excellent at rendering and physics. They are not server infrastructure. Player accounts, state that persists between sessions, matchmaking, server allocation, and staying up under peak load are a separate engineering problem, and it grows harder as your player base grows. Custom game backend development means that infrastructure is designed for the concurrency your game actually reaches, not the prototype that was fast to ship.
RaftLabs has shipped production software since 2015 for clients across the US, UK, Europe, Canada, and the UAE. The closest work to a game backend is a civic-engagement platform we load-tested to 7,000 to 8,000 concurrent users on a single node before launch, holding p95 response under 350ms at 1,000 concurrent (VoterIQ, in the case study below). That is real-time concurrency engineering, not a shipped game, so we will say plainly where a managed service like PlayFab or Nakama is the smarter first step instead of recommending custom by default. The team that scopes your concurrency target is the team that builds it.
Latency is the backend's job, and it decides how a game feels. Players do not read your architecture diagram; they feel the delay between input and result. The published thresholds are why we design for it from day one.
- where players start to notice lag
- ~80 ms
- 309-player latency study, WPI game-networking research
- tolerance ceiling for competitive FPS play
- 100-150 ms
- WPI game-networking research (Claypool et al.)
- point where player performance drops sharply
- ~400 ms
- WPI game-networking research
Custom pays off when your game exceeds what a managed platform supports.
Everything on the left should already be true for your game. Even one thing on the right, and a managed service like PlayFab or Nakama is the smarter first step.
A fit
A multiplayer game with a real concurrent-player target, not a prototype still guessing at scale.
Requirements a managed platform can't cover: custom matchmaking logic, a complex in-game economy, analytics at ClickHouse speed, or data-ownership constraints.
Per-MAU platform pricing that stops making sense at your player counts, and budget for a custom build.
Not a fit
A single-player game with no backend beyond save files.
Standard requirements a managed service like PlayFab or Nakama already covers well.
A pre-launch prototype with no concurrency data to design against yet.
What we build
What a custom game backend covers
Player profile and account management
Registration, OAuth, and platform-linked login flows, with profile data stored by access pattern and leaderboards implemented via Redis Sorted Sets for O(log N) rank lookups, on PostgreSQL and Redis.
Session and game state management
Authoritative server architecture with client-side prediction, UDP/ENet transport for low-latency sync, and conflict-resolved save game management across devices.
Authentication and account security
Short-lived JWT access tokens with refresh rotation, login anomaly detection with step-up verification, and guest-to-registered conversion that preserves game progress.
Game server orchestration
Auto-scaling game server fleets on Agones and Kubernetes, with regional allocation by latency, warm pool management for demand spikes, and spot-instance cost optimisation for steady-state load. Launch day scales without an engineer manually watching a dashboard.
Real-time communication infrastructure
Horizontally scaled WebSocket connections with Redis pub/sub, presence tracking, in-game chat moderation, and a Kafka/ClickHouse analytics event pipeline.
API design and client SDK
REST and WebSocket APIs with token-bucket rate limiting, idiomatic client SDKs for Unity, Unreal, and Godot, and matchmaking integration via TrueSkill 2.
Have a game backend project?
Tell us your game type, target concurrent player count, and which backend systems are blocking your launch or limiting your live service. We'll scope the right infrastructure and give you a fixed cost.
How it works
From scope to live game backend
- Phase 101
Concurrency and platform scoping
We map your game type, target concurrent player count, and release platforms. You leave the first phase with a written scope document and a fixed-price quote.
- Phase 202
Architecture and data model design
Session, matchmaking, and orchestration architecture designed for your concurrency target. The authoritative-versus-managed call, tick rate, and regional layout are decided here, before a line of production code is written.
- Phase 303
Build and integrate
Profile system, session management, and server orchestration built in parallel, tested against real load scenarios.
- Phase 404
Launch and load testing
Load tested against target concurrency and launch-day traffic before go-live. You get the numbers we measured, including where the system starts to strain and the documented path to scale past it, not a vague promise that it will hold.
The engineering calls that decide your bill
Most of what a game backend costs, in money and in operations, is set by a handful of architecture calls made early. Here is how we make them, and where we push back on the default answer.
- Authoritative servers cost real money
- Running the simulation server-side stops most cheating and desync, but every concurrent match is a live server you pay for. We size the warm pool to your real concurrency curve and put steady-state load on spot instances, so you are not paying peak prices while most of the world sleeps.
- Agones only when you truly need it
- Fleet orchestration on Agones and Kubernetes earns its complexity for fast-paced authoritative games. For turn-based, async, or lightly-synced titles, a managed matchmaker plus serverless functions is cheaper to run and far less to operate. We will not stand up a Kubernetes fleet you do not need.
- Tick rate is a budget, not a default
- A 60Hz authoritative tick feels sharp and costs roughly double a 30Hz loop in CPU and bandwidth. We set tick rate by how the game actually plays, and lower it for modes where no player will feel the difference.
- Anti-cheat is layered, never solved
- Server-authoritative state, rate limiting, and anomaly detection stop the common exploits. Client-side anti-cheat raises the bar further but is an arms race with real overhead. We are honest about what each layer buys before you spend on it.
What clients say
What our clients say
Three-year average engagement. Founders and operators describing the work in their own words. No marketing varnish.
Testimonial 1 of 1: Dr. J. Ayo Akinyele
Proof
Case studies
High-concurrency civic engagement platform, load-tested to launch scale
Draftly reaches 500+ active users in 60 days by removing the blank-page barrier to LinkedIn posting
Draftly combines AI post drafting, real-time document collaboration, and a scheduling queue so professionals can publish 3x more often without spending more time writing.
City Break Apartments grows self check-ins 7x and direct revenue 25% with branded booking platform
We built a branded booking website with RMS Cloud integration and a Bluetooth keyless mobile app for City Break Apartments in Dublin, activating 250 Omnitec locks already installed, cutting 20+ staff hours per week, and growing self check-ins from fewer than 10 to 72+ weekly.
Scope the backend your concurrency target needs.
Player profiles, session management, matchmaking, and orchestration, designed for the concurrency your game requires and load tested before go-live. Managed services like PlayFab or Nakama are the right starting point for standard requirements; we will tell you when that is enough.
Work with us
Tell us where the work is stuck.
Bring the rough workflow, half-built product, or messy brief. We will map the smallest useful first move, then send scope, timeline, and price in plain English.
- Scope and cost agreed before work starts. No surprises. No obligation.
- Working prototype within 3 weeks of kickoff.
- Pay by milestone. You see progress before each invoice.
- 60-day post-launch warranty. Bug fixes, UI tweaks, and deployment support. No retainer.
- All conversations are NDA-protected.
Common questions
Managed services are the right starting point for standard requirements. Custom becomes better when your game exceeds what the platform supports: custom matchmaking logic, complex economy, analytics requiring ClickHouse-level speed, data ownership requirements, or unit economics that make per-MAU pricing unsustainable at scale.
All environments are defined in infrastructure-as-code (Terraform or Pulumi) checked into version control. CI/CD pipelines deploy to staging automatically, with production gated on manual approval and smoke tests, and database migrations use Flyway or Liquibase with rollback scripts.
Yes. Steam, PSN, Xbox Live, Apple Game Center, and Google Play Games all use server-side token validation patterns to keep authentication authoritative on the backend. Platform certification requirements are scoped before development starts.
Build versus buy is a cost question, not just an engineering one. Compare the monthly infrastructure cost against the one-time build plus ongoing maintenance, and remember on-call is the hidden price: the team that operates the backend pays in attention as well as money. The worst time to find out about multiplayer hosting costs is after shipping, when the bill arrives. Server authority rules are game-specific; only you know valid play. Launch day is the worst possible time to discover the backend never scaled. Validate through a 30-day load test before committing to an annual contract.
Three launch-day failures. One: the leaderboard turns into nonsense scores within 48 hours without server-side validation. Two: WebSocket connection-minutes, the line item to watch. Three: death by a thousand cuts. Matchmaking, hosting, invites, SDK integration, chat, voice were harder than netcode itself. Validate at expected and peak concurrency. Server authority versus client authority is the central tradeoff: authoritative servers add delay; client-side hit detection lets 300–400ms-ping players still have fun. Cheating: shoot-through-walls and speed hacks are preventable server-side, but not easy once terrain, physics, and vehicles enter.
Budgeting live ops as a one-time cost is a common first-timer mistake. Server upkeep, seasonal content, and community management never stop at ship date. Infrastructure scales with concurrency and regions, and labor dwarfs infrastructure: the buyer's real decision is the team that operates the backend, not the servers.
Four rituals. One: the scale test. Services sharded around how they scale, with a dedicated account-authority service. Two: the cheat test. A leaderboard that still shows real scores after 48 hours. Three: the load test. Validate at expected and peak concurrency before signing the annual contract. Four: the on-call question. Who carries the pager, and what does live ops cost per month after ship? Build your own backend or use PlayFab or Nakama: buy unless operations is a skill you have.
Cost follows scope: a backend covering player profiles, authentication, session management, and game server orchestration is a different build than a full live-service backend with real-time communication infrastructure, platform integrations, and an analytics pipeline. After scoping your concurrency target, you get a fixed written quote before development starts.
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