To watch a CS2 demo, get the match's .dem file or a supported match link, then open it in the Memorin 3D demo viewer. The replay includes the map, player movement, rounds, kills, weapons, grenades and review controls. You can also use CS2's built-in playdemo command when you want the official in-game player.
What is a CS2 demo?
A CS2 demo is recorded match state, not a video. The file can contain player positions and view angles, round and kill events, weapons, health, money and grenade trajectories. A demo viewer reads that state and renders it again. That is why the same match can be reviewed from different cameras instead of only from one recorded screen.
How to watch a CS2 demo
- Get the demo. Download the
.demfrom the match source, or use a supported FACEIT, Leetify or share-code route. - Open the viewer. Use Memorin for a browser replay, or use the game's
playdemocommand for the official client. - Choose the question. Start with a round, kill, utility event or player, then use the timeline and camera controls to inspect it.
- Review the decision. Compare POV, follow, free-camera and top-down views, then open match review for round and player context.
The browser route is useful when you want to watch without installing or launching the game. It is also easier to share as a review workflow: upload once, return to the match, and jump directly to the event that matters.
Where to download CS2 demos
Match demos may come from matchmaking, FACEIT, Leetify, a direct demo URL or a downloaded file. The exact route depends on where the match was played and how long the source keeps its recordings. Use the CS2 demo download guide for file locations, compressed formats and source-specific steps. For FACEIT matches, see how to watch FACEIT demos online.
Most uploads arrive as a .dem. Memorin also accepts the supported compressed demo forms .dem.gz, .dem.zst and .dem.bz2. If the file is an archive or the download is incomplete, the CS2 demo troubleshooting guide explains what to check.
How to analyze a CS2 demo
Watching a demo is only useful when it answers a concrete question. In the 3D viewer you can:
- scrub to rounds, kills and recorded events instead of watching the whole match;
- switch between player POV, follow player, free camera, top-down and Multiple POVs;
- inspect smoke, flash and molotov paths, scoreboards, radar and round context;
- compare what the player saw with the angle, spacing or utility that shaped the round;
- open a death or decision as a Replay Moment and practice a different answer.
The CS2 demo analyzer guide explains what a demo records, what the viewer derives and what it cannot know. That boundary matters: a good analysis marks missing evidence instead of inventing it.
CS2 demo viewer or the in-game player?
| Use this | Best for |
|---|---|
| CS2 in-game demo player | Official playback fidelity and console commands such as playdemo, demoui and demo_gototick. |
| Memorin 3D browser viewer | Watching without launching the game, switching cameras, reviewing utility and jumping through a match in a browser. |
| Stats platform | Comparing numbers across many matches; use a 3D viewer when you need to understand why one round happened. |
For the complete command list, see CS2 demo commands and replay controls. For a category-by-category comparison, see how to choose a CS2 demo viewer.
CS2 demo FAQ
What is a CS2 demo?
A CS2 demo is a recorded Counter-Strike 2 match file, normally ending in .dem. It stores recorded match state such as player positions, view angles, rounds, kills, weapons and grenade events rather than being a video file.
How can I watch a CS2 demo without launching the game?
Upload a CS2 .dem file to Memorin and it becomes an interactive 3D browser replay with a timeline, player POV, free camera, radar, utility and match review tools.
Where can I get a CS2 demo file?
You can download a demo from a supported match or third-party source, use a FACEIT matchroom link, or use another supported import route. A downloaded demo normally stays as a .dem file or a compressed .dem.gz, .dem.zst or .dem.bz2 file.
Can I analyze a CS2 demo in 3D?
Yes. Memorin reconstructs supported CS2 demos as full 3D replays with map geometry, player movement, cameras, grenades, scoreboards, events and a review panel.