Fix: Sims 3 "Unsupported Graphics Card" Error on Capable Hardware

This error means the launcher (Sims3Launcher.exe) doesn't recognize your GPU in its internal whitelist—not that your card can't run it. Common on GTX 900/1000/2000/3000/4000 series, RX 5000/6000/7000, and Intel Arc.

Fix 1: Update Video Card Database (Easiest)

1. Download Graphics Rules Maker (GRM) by SimmyTheSim (GitHub / ModTheSims).
2. Run as Admin → Select "Auto-Detect" → "Apply".
3. It writes your GPU into VideoCardDatabase.txt and optimizes GraphicsRules.sgr for modern hardware (VRAM detection, shader model, multi-core).

Fix 2: Manual Driver Update

• NVIDIA: Clean Install (Custom → Clean) latest Game Ready Driver.
• AMD: Adrenalin → Factory Reset.
• Intel Arc: Latest Arc Driver (frequent fixes for Sims 3).

Fix 3: Compatibility & Launch Tweaks

• Set TS3.exe & Sims3Launcher.exe → Properties → Compatibility → Disable Fullscreen Optimizations + Run as Admin.
• Force DX9 mode: Add -w -force-d3d9 to launch options (Origin/Steam/EA App).
• Laptop Optimus/Mux Switch: Force "High Performance" GPU in NVIDIA Control Panel / AMD Adrenalin for both exes.

Fix 4: Registry Edit (If Launcher Still Blocks)

Regedit → HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Sims\The Sims 3 → Create VideoCard (String) = your GPU name (e.g., "NVIDIA GeForce RTX 4070").

Post-Fix: In-Game Settings

• Start at Medium → test stability → raise gradually.
• Enable Edge Smoothing (AA) via GPU control panel (FXAA/TAA), not in-game (broken).
• Cap FPS at 60 (RivaTuner/RTSS) — physics engine breaks >60 FPS (jitter, fast sims).

GRM solves 99% of "unsupported" errors. If crashes persist, check ModTheSims "Graphics Rules Maker" thread for your specific GPU.