Trespasser build 96. This first build the community received that contained the long lost Pine Valley level. It is the last known playable version of Pine Valley to exist before getting cut and removed in build 99. Contains early versions of the other levels as well as the cut beginning of AS1.

Trespasser build 32. The disc name is PCGamer. This build was possibly created as a press copy for the PCGamer magazine. Whatever it was actually shown or not is not known, but the lack of know images from the build's levels suggest this was not the case, or it never went to be featured in an article.

This build contains a well developed version of the once lost "Plantation House" level. It also contains Jungle Road, Industrial Jungle, Pine Valley and Test Scene.

Note: Identical to "Trespasser Build 22 (E3 BUILD 6)" except for a few debug text files.

This is the complete E3 demo shown at E3 1998. It contains a completely different Industrial Jungle level comparing to the level found in the released game.
It also contain Pine Valley and Test Scene.

Note: Identical to "Trespasser Build 22 (E3TrespasserFull) except for a few debug text files.

This is the complete E3 demo shown at E3 1998. It contains a completely different Industrial Jungle level comparing to the level found in the released game.
It also contain Pine Valley and Test Scene.

Trespasser build 99. Mostly identical to build 96/97. Beach got added tutorial areas only seen in early screenshots and Pine Valley was cut, and TestScene Night was added.

Trespasser build 97. Everything is identical to build 96 except for the EXE files.

Trespasser build 55. This build have some interesting early content, including a really early version of BE and SUM.

Levels included:

• Beach (Overall empty but has an early, unfinished and open terrain).
• Jungle Road (Some differences from Build 32's JR but this one has all the foliage!).
• Industrial Jungle (Identical to Build 32 but .scn file is empty, so loading level might not be possible).
• Pine Valley (Some differences from earlier versions).
• InGen Lab (Fully playable Lab level, possibly the version seen in many Lab screenshots).
• The Summit (Early version with some interesting differences from later known version).

Trespasser build 103. This build has minor interesting difference comparing to build 96/97/99. An example would be AS2 having a supply locker at the start as well as another jeep up the mountain.