PC Game Development
PC is the most heterogeneous platform. A game must run on an office laptop with integrated graphics and on a gaming station with RTX 5090. Same executable, different hardware. This is an architectural task, not just optimization.
PC development specifics
Scalable quality settings
Unity's Quality Settings are basic but insufficient. A player with GTX 1060 and a player with RX 6800 XT fall into different buckets not by profile name but by real GPU capabilities.
Right approach — dynamic settings selection based on GPU benchmark on first launch. SystemInfo.graphicsMemorySize, SystemInfo.graphicsDeviceVendor, SystemInfo.maxTextureSize give basic hardware info. For accurate benchmark — short synthetic test with GPU time measurement via FrameTimingManager.
For URP: separate URP Asset for each quality level. Shadow Distance, Shadow Cascades, MSAA, Post-Processing effects — all managed via QualitySettings.renderPipeline at runtime. HDRP — similarly via FrameSettings.
Steam and platform integration
Steam is primary distribution for PC games. Integration via Steamworks.NET (C# wrapper) or FacePunch.Steamworks:
- Steam Achievements — SteamUserStats.SetAchievement(), auto-sync with cloud
- Steam Cloud — saves via ISteamRemoteStorage. Works as filesystem, 100 MB quota default
- Steam Leaderboards — ISteamUserStats.FindOrCreateLeaderboard()
- Steam Input — unified API for gamepads. One code for Xbox, DualSense, Switch Pro, Steam Deck. Critical for PC games supporting gamepads properly
Steam Workshop — for user-generated content support. Requires separate infrastructure: content validation, versioning, download via ISteamUGC.
Input management
PC — only platform where player can simultaneously use keyboard, mouse, gamepad. Unity Input System (new) handles this via Action Maps: one Action with multiple Bindings (WASD + gamepad stick + arrow keys). On device switch during gameplay — automatic rebind.
Key remapping — requirement for PC. InputActionRebindingExtensions.RebindingOperation — built-in API. Save bindings: inputAction.SaveBindingOverridesAsJson() to PlayerPrefs or file.
Mouse needs special attention in 3D games: rawInput for camera (removes mouse acceleration via Mouse.current.delta.ReadUnprocessedValue()), separate sensitivity for gamepad and mouse, Y-axis inversion.
Technical stack for PC
Render: URP for most projects. HDRP — for AA/AAA with ray-tracing requirements (DXR), high-quality volumetric fog, SubSurface Scattering. HDRP requires DirectX 11/12 — normal for PC, but closes path to consoles/mobile.
Physics: PhysX via built-in Unity Physics. For precise simulations (vehicles, physics puzzles) — Havok Physics for Unity (via DOTS). For 2D — Box2D (built-in).
High-level graphics:
- Ray Tracing via UnityEngine.Rendering.RayTracingShader (HDRP, DX12, requires RTX-capable card)
- DLSS/FSR/XeSS via Unity DLSS, AMD FSR Package — upscaling for performance at quality cost
- Volumetric clouds, GlobalIllumination — HDRP Lit Shader + Adaptive Probe Volumes
Localization: PC games often support more languages. Unity Localization package + Google Sheets as string source via importer. For voice — Addressable Audio Assets with local version.
Anti-cheat and security
For online PC games, cheating is serious. Easy Anti-Cheat (Epic) and BattlEye — AAA-level solutions, integrate at launcher level. For indie — minimum: server-side validation of all critical actions (damage, loot, progression), code obfuscation via IL2CPP (significantly harder to reverse than Mono).
Cheating in offline games — different issue. Cheat Engine — part of PC culture for single-player. Protection makes sense only if cheating breaks others' experience (online) or monetization.
Distribution and launch
Steam — primary channel. Pipeline: SteamPipe for build uploads, SteamCMD for CI/CD automation. Early Access — common indie strategy: monetization pre-release + community feedback.
GOG — DRM-free audience, smaller but loyal.
Epic Games Store — 88% revshare (vs 70% on Steam), but smaller audience.
itch.io — suited for Game Jam, experimental projects, indie showcase.
Automatic releases via GitHub Actions + Butler (itch.io) or SteamCMD. Each main merge → automatic build → beta branch upload → manual release promotion.
Development timelines
| Project Type | Scope | Timeline |
|---|---|---|
| Hyper-casual PC | 1-3 mechanics | 1-4 weeks |
| Indie, single campaign | 2-5 hours content | 3-6 months |
| Indie with multiplayer | PvP or coop | 4-8 months |
| AA project | Open world / deep story | 8-18 months |
Cost calculated after analyzing specification, target platforms, and online infrastructure requirements.