Open the match history or match room belonging to the service where you played, use its demo download action, and extract the download if it arrives as a compressed archive. The file Memorin’s manual uploader expects ends in .dem. Service interfaces and retention rules can change, so use the service’s current official instructions when available.
Before you download
Identify the match source: CS2 matchmaking or Premier, FACEIT, a tournament provider, or a demo someone shared directly. The download belongs to that source; Memorin does not need the demo to be copied into a CS2 installation folder before a browser upload.
Save the original download until the replay opens successfully. A descriptive filename containing the date, map and opponent makes later review much easier.
Matchmaking or Premier
Use the current match-history controls available through CS2 or your connected Steam match history to locate the match and its demo or share code. Because Valve can change navigation and availability, this guide does not claim a permanent button location or retention period.
In Memorin, manual upload accepts a .dem. The site can also expose a share-code import path when that server integration is configured. A share code is not itself a demo file; it identifies a match that an enabled integration may retrieve.
FACEIT demos
FACEIT’s official support guide instructs players to open the match room, select Watch Demo, download the compressed file and extract it before using the demo. Follow the current FACEIT guide to downloading and watching a CS2 demo for FACEIT-specific steps.
For Memorin, you do not need to move the extracted file into the game directory. Once extraction produces a file ending in .dem, open Memorin’s Demos area and upload that file.
Compressed downloads
A filename ending in an archive or compression suffix is not yet the raw demo expected by the manual file picker. Extract it with a tool that supports the format, then locate the enclosed .dem. Do not merely rename a compressed file to .dem; renaming does not decompress its contents.
If the demo will not open
- Confirm the extracted file really ends in
.dem. - Check that the download completed and has a plausible non-zero file size.
- Try the original source again if the archive reports corruption.
- Confirm the match and map are supported by the current viewer.
- Keep the original file when reporting an error; the filename and source help diagnose format differences.