There is no legitimate "free full version" for download. Autodesk offers a 30-day free trial (fully functional) and a free educational license for students and teachers (verified via school email).
: 規約を確認し「同意する」を選択します。 civil 3d ダウンロード
| Item | Detail | |------|--------| | | ~5–8 GB (depending on version and language packs) | | Installed size | ~10–15 GB | | Internet | Required for download and license validation (every 30 days) | | OS | Windows 10/11 (64-bit) – No Linux, No macOS | | CPU | 2.5–3+ GHz (Intel Core i7/i9 or AMD Ryzen 7 recommended) | | RAM | 16 GB minimum (32 GB for large surfaces/corridors) | | GPU | DirectX 12 compatible with 4 GB VRAM | | Disk | SSD strongly recommended | There is no legitimate "free full version" for download
| Source | URL / Method | Best For | |--------|--------------|-----------| | | www.autodesk.co.jp → Products → Civil 3D → Free Trial / Subscribe | Getting the latest version (2024, 2025) legally. | | Autodesk Account (管理画面) | After purchase/subscription → Product & Services → Download | Full installer, patches, and language packs. | | Autodesk Desktop App | Built-in app after installing any Autodesk product | Managing updates and add-ons. | civil 3d ダウンロード