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.

Levels included:

• Jungle Road (The first playable version of Jungle Road we have. It has the starting area after the bridge puzzle in Beach (as according to the early walkthrough). It lacks foliage. A similar version with foliage can be found in build 55. Otherwise build 32 and build 55 Jungle Road contains a few differences between each other).
• Plantation House (The only version of the long lost Plantation House we have. It is well developed for a level we were told was cut early in development. We know they did more work to it afterwards due to being told they made a puzzle to gain access to the plantation house itself).
• Industrial Jungle (Minor differences to build 22).
• Pine Valley (Minor differences to build 22).
• Test Scene (Only level we have that contains the early long-clawed raptor).

Compatibility patch to run files in retail/ATX/CE, as well as compatible with TresEd and GeomAdd: Retail Compatibility Patch For Build 32-PC Gamer .GRF/.SCN Files Download

Utility to convert the TPA to retail/ATX/CE standards (so it can be read by the game): TPAupdate Download

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.

Levels included:

• Industrial Jungle (Contains some major differences comparing to retail).
• Pine Valley (Our first version of this once lost level).
• Test Scene (Only level we have that contains the early long-clawed raptor).

Compatibility patch to run files in retail/ATX/CE, as well as compatible with TresEd and GeomAdd: Retail Compatibility Patch For Build 22-E3 .GRF/.SCN Files Download

Utility to convert the TPA to retail/ATX/CE standards (so it can be read by the game): TPAupdate Download

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.

Levels included:

• Industrial Jungle (Contains some major differences comparing to retail).
• Pine Valley (Our first version of this once lost level).
• Test Scene (Only level we have that contains the early long-clawed raptor).

Compatibility patch to run files in retail/ATX/CE, as well as compatible with TresEd and GeomAdd: Retail Compatibility Patch For Build 22-E3 .GRF/.SCN Files Download

Utility to convert the TPA to retail/ATX/CE standards (so it can be read by the game): TPAupdate Download

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).
• Test Scene

Compatibility patch to run files in retail/ATX/CE, as well as compatible with TresEd and GeomAdd: Retail Compatibility Patch For Build 55 .GRF/.SCN Files Download

SWP files for viewing in TresEd (Build 55 is using SPP files, similar to SPZ ones): Build 55 SWP Files Download

Utility to convert the TPA to retail/ATX/CE standards (so it can be read by the game): TPAupdate Download

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.