There are 11 other file types using
the GRP file extension!

grp icon.grp - Microsoft Windows program group

empty icon.grp - StarCraft graphics group file

empty icon.grp - GenePix results file

empty icon.grp - ACT! group data file

empty icon.grp - BPM Studio playlist archive file

empty icon.grp - DESQview data

empty icon.grp - SmarterMail group file

empty icon.grp - ENVI display group file

empty icon.grp - GameExchange scene file list

empty icon.grp - MSX Screen 2 picture image

empty icon.grp - Transport Fever group parameters

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GRP file - Duke Nukem 3D archive

What is grp file? How to open grp files?

File type specification:

Game file type icon Game file type

grp file icon: grp filetype icon

The grp file extension is associated with the Duke Nukem 3D and other computer games (Blood, Shadow Warrior) based on Build game engine developed by Ken Silverman.

The grp file (also known as Build Engine group file) contains game data such as game maps, sounds, music, models, textures etc. It is an archive, which is uncompressed and not encrypted.

Updated: May 18, 2018

The default software associated to grp file type:

Duke Nukem 3D icon

3D Realms/Apogee Software Ltd. logoDuke Nukem 3D  Microsoft MS-DOS software

Company or developer:
3D Realms/Apogee Software Ltd.

Duke Nukem 3D is legendary action ´3D first person shooter computer game. Player takes role of Duke Nukem action hero. Duke must kick asses of aliens that attack the Earth.

Blood picture or screenshot

Monolith Productions, Inc. logoBlood  Microsoft MS-DOS software

Company or developer:
Monolith Productions, Inc.

Blood is a first-person shooter computer game developed by 3D Realms and Monolith Productions and released in 1997.

Shadow Warrior icon

3D Realms/Apogee Software Ltd. logoShadow Warrior  Microsoft MS-DOS software

Company or developer:
3D Realms/Apogee Software Ltd.

Shadow Warrior is a first-person shooter computer game developed by 3D Realms and published by by GT Interactive in 1997. The story focuses on Lo Wang.

Help how to open:

Use compatible tools to view content of *.grp files.

How to convert:

These games files cannot be converted to anything else. However, sometimes modding.

Related links:

Ken Silverman's Official Home Page

List of software applications associated to the .grp file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open grp file, edit grp file, convert grp file, view grp file, play grp file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is ableto perform the specified software action, such as opening, editing or converting grp files.

  • Open grp file
  • Extract grp file
  • Others grp file

Software that open grp file - Duke Nukem 3D archive

Programs supporting the exension grp on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about ZipZag for open grp file action.

Microsoft Windows:

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