They're opposite genres — pick by mood:
| Aspect | The Sims 3 | Assassin's Creed Brotherhood |
|---|---|---|
| Genre | Life Sim / Sandbox | Action-Adventure / Stealth |
| Pacing | Self-directed, slow | Mission-driven, fast |
| Creativity | Build, design, storytelling | Parkour, combat, exploration |
| Story | Emergent (your Sims) | Scripted (Ezio's revenge) |
| Replayability | Infinite (households, mods) | High (100% sync, MP, DLC) |
| Mods | Massive community (Nraas, CC) | Limited (texture, cheat tables) |
| System Demand | High (open world, 32-bit) | Moderate (optimized) |
Both are often < $5 on sale (Steam, EA App, Ubisoft Store). Get both.