C93 File

What are C93 files and how to open them

Are you having problems opening a C93 file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your C93 files.

What is a C93 file?

A .C93 file is an Interplay Video file.

The Interplay Video File (extension .C93) holds full-motion video sequences used in the DOS version of the game Cyberia by Interplay Entertainment. These files provide animated cutscenes or story segments as part of the game experience, rather than gameplay graphics or static artwork.

These video files are produced by Interplay during development and distributed with Cyberia. During gameplay, the game engine decodes and plays back the video content stored in these .C93 files. They are seldom used outside that game, and when they are, it is usually by archivists or fans converting them for preservation or analysis. One slightly modified successor to this format is called M95, used in Cyberia 2: Resurrection.

Technically, .C93 videos use a palette-based encoding in 320×200 pixels with 256 colours, but only 320×192 are used; the bottom rows are left empty or black. Frames are grouped in blocks with tables indicating frame offsets, sizes, and sound chunks embedded, typically stored as complete VOC files. Within video data, pairs of adjacent 8×8 blocks are coded using a variety of modes: e.g. copying from the previous frame, using simplified bitmap transpose colour (BTC) two-colour or multiple-colour block encodings, or raw intra blocks.

How to open C93 files

We have identified one C93 opener that is compatible with this specific type of C93 file.

Programs that open Interplay Video files

Last updated: August 5, 2026

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