REZ files exist as 3 different types. Please find information about each of them below.
Type 1: LithTech Game Engine Resource
You can use Dragon UnPACKer for Windows to extract a REZ file's resources. The lithrez.exe program included in some LithTech games also extracts REZ resources. REZ files belong to LithTech games by Mo...
General Information
| Title | REZ File Extension |
| Extension | .rez |
| Full Form | LithTech Game Engine Resource File |
| File Type | Game Resource File |
| Developer | LithTech Inc. |
| MIME Type | application/octet-stream |
File Function
| Primary Function | Store game data |
| Additional Functions | Packaging textures, sounds |
| Features | Binary format, Archive-like |
File Characteristics
| Quality | Game-dependent |
| Supports Layers | N/A |
| Supports Transparency | Yes, in textures |
| Editable | With tools |
Use Cases
| Game Development | Yes |
| Modding | Yes |
| Resource Management | Yes |
Security and Practices
| Security Risks | Altered files |
| Best Practices | Verify integrity, Use official tools |
Historical/Version Information
| Initial Release | 1997 |
| Latest Version | Depends on game/engine version |
Associated Types
| Similar Extensions | .pak, .bsp, .wad |
Software Compatibility
| Software | Usage Policy | OS Compatibility |
|---|---|---|
 LithTech Game Engine |
Engine License | Windows |
| DAEdit |
Free with engine | Windows |
| REZ Explorer |
Free | Windows |
Type 2: FirstClass Resource File
The .rez file extension is related to FirstClass software for communications. FirstClass combines email, voicemail, and conferencing accessible on various devices. The .rez files store resources to cu...
General Information
| Title | REZ File Extension |
| Extension | .rez |
| Full Form | FirstClass Resource File |
| File Type | Resource File |
| Developer | OpenText |
| MIME Type | application/octet-stream |
File Function
| Primary Function | Store resources |
| Additional Functions | Customize UI, Alter appearance |
| Features | Modular, Reusable |
File Characteristics
| Quality | Highly structured |
| Supports Layers | N/A |
| Supports Transparency | N/A |
| Editable | Yes, with tools |
Use Cases
| Client Customization | Yes |
| Server Configuration | Yes |
| UI Development | Yes |
Security and Practices
| Security Risks | Resource manipulation |
| Best Practices | Validate changes, Backup original |
Historical/Version Information
| Initial Release | Unknown |
| Latest Version | Related to software version |
Associated Types
| Similar Extensions | .fc, .dtl, .template |
Software Compatibility
| Software | Usage Policy | OS Compatibility |
|---|---|---|
| FirstClass Client |
Licensed | Windows, Mac |
| FirstClass Server |
Licensed | Windows, Linux |
Type 3: Escape Velocity Plug-in File
The .rez file extension is a plugin for Escape Velocity. Escape Velocity is a single-player space trading and combat game by Ambrosia Software. The plugins add new content like ships, missions, and gr...
General Information
| Title | REZ File Extension |
| Extension | .rez |
| Full Form | Escape Velocity Plug-in File |
| File Type | Game Data File |
| Developer | Ambrosia Software |
| MIME Type | application/octet-stream |
File Function
| Primary Function | Store game data |
| Additional Functions | Modify game content |
| Features | Resource data, Modifiable |
File Characteristics
| Quality | Game-specific |
| Supports Layers | N/A |
| Supports Transparency | N/A |
| Editable | Yes, with tools |
Use Cases
| Game Modification | Yes |
| Custom Scenarios | Yes |
| Resource Management | Yes |
Security and Practices
| Security Risks | Executable code |
| Best Practices | Scan for malware, Trusted sources |
Historical/Version Information
| Initial Release | 1996 |
| Associated Game | Escape Velocity series |
Associated Types
| Similar Extensions | .ndat, .spob, .ship, .përs |
Software Compatibility
| Software | Usage Policy | OS Compatibility |
|---|---|---|
| Escape Velocity |
Commercial | Mac |
| Escape Velocity Override |
Commercial | Mac |
| Escape Velocity Nova |
Commercial | Windows, Mac |
| MissionComputer |
Free | Mac |