| Date | Filename | Summary | Size | Downloads |
| 19-07-06 | 169_portal_071806_wm.zip | Half-Life 2: Episode 2 - Portal Trailer [MPEG] | 19.3MB | 160 |
| 19-07-06 | 169_portal_ot_mul_071806_hd.wmv | Half-Life 2: Episode 2 - Portal Trailer | 52.6MB | 5853 |
| 13-05-10 | FreePortal_h264.mov | Portal "Play for Free" Trailer | 129.5MB | 10 |
| 13-10-08 | portal-prelude-setup-1.0.0.exe | Portal Prelude v1.0.0 Mod for Portal | 775.3MB | 1043 |
| 31-10-08 | portal-prelude-setup-1.1.0.exe | Portal Prelude v1.1.0 Mod for Portal | 822.9MB | 2099 |
| 03-03-09 | portal-prelude-setup-1.1.5.exe | Portal Prelude Patch v1.1.5 Mod for Portal | 792.6MB | 15631 |
| 31-10-08 | portal-prelude-update-1.0.0-1.1.0.exe | Portal Prelude Patch v1.0.0 to v1.1.0 Mod for Portal | 384MB | 1026 |
| 07-07-10 | pp-test01.avi | Portal: Prelude "Official Walkthrough #1" Trailer | 46.3MB | 9 |
| 18-04-11 | projex_beta_01.rar | The Projex Beta 1 Mod for Portal | 61.8MB | 16 |
| 07-05-08 | wcs_portaltfv_mappack.rar | Portal: The Flash Version Map Pack | 39.4MB | 816 |