The Poseidon CS2 map is a community Wingman map set at a white-walled resort on a Greek island. It has one bombsite, known as A, and a compact layout with height changes. Valve added it to Wingman in January 2026. This guide covers its routes, callouts and simple 2v2 plans.
What is the Poseidon CS2 map?
Poseidon is a de_ map built for the 2v2 Wingman mode. Guides describe terraces, water and stone structures, with the sea in the background. It came from the Steam Workshop community, like most Wingman maps in CS2.
Valve added Poseidon and Sanctum to Wingman on 21 January 2026. A 2026 guide to Wingman lists Poseidon with Debris and El Dorado, which suggests it stayed after the July 2026 rotation. Map lists change often, so check the Wingman list in the play menu before you queue. Our Wingman mode guide explains the mode itself.
How is Poseidon laid out?
The map has three main zones: the Terrorist side, mid and the site, with the CT side behind the site. Guides call it small, with long sightlines and tight choke points. One guide notes there are no safe lurk spots for Terrorists, so a player who wanders off alone is easy to catch.
- Terrorist routes: from T Spawn, players use Stairs, Arch or Lower Path. Stairs and Arch lead towards mid. Lower Path is a slower, safer way towards the site.
- Mid: an open area with a pillar for cover and a shallow Water section. Bridge leads from mid towards the site.
- CT routes: from CT Spawn, defenders use CT Stairs and Connector to reach the site and mid.
Poseidon callouts
The names below appear in more than one 2026 guide. Your team may use other words, so agree on calls first.
| Callout | Area | What it is |
|---|---|---|
| T Spawn | T side | The Terrorist starting area |
| Stairs | T side | Leads up from T spawn towards mid |
| Arch | T side | A stone archway from spawn towards mid |
| Lower Path | T side | A slower route towards the site |
| Mid / Pillar | Mid | The central area and its big column |
| Mid Boost | Mid | A raised spot reached with a boost |
| Water | Mid | A shallow water section near mid |
| Bridge | Mid to site | Links mid to the site side |
| Default | A site | The most common plant spot |
| Back Site | A site | The deep corner behind cover |
| Headshot | A site | A raised angle over the site |
| Temple | A site | An enclosed structure near the site |
| Heaven | CT side | A raised defensive angle |
| Window | CT side | Looks over the site and the mid approach |
| CT Stairs / Connector | CT side | Routes from CT spawn to the site and mid |
For more on making short, clear calls with a partner, see our guide to Wingman callouts.
Tips for Terrorists on Poseidon
With no safe lurk spots, stay close enough to trade. A good habit is for one player to take mid while the other watches Lower Path. If mid falls, cross Bridge together. If mid is held, swap to Lower Path and come in from a different angle. Save a flash for the site, because Heaven and Headshot look down on the plant.
After the plant, play crossfires rather than sitting together. The defuse takes 10 seconds, or 5 with a kit, so one well-timed peek is often enough. Our utility basics guide explains which grenade suits each job.
Tips for Counter-Terrorists on Poseidon
Use the long sightlines. One CT can watch mid from a safe angle while the other holds the site from Heaven or Window. Call early when you see a Terrorist on Lower Path. If you lose the first duel, your partner should fall back and wait for a retake instead of peeking alone. Our retakes guide covers the basics.
How to learn Poseidon quickly
- Play a few Wingman matches and watch where good players stand.
- Walk each route from both spawns on an offline copy from the Workshop.
- Practise grenades with a lineup tool or a video in a private server, not live in a match.
Sources and checks
The January 2026 Wingman additions were checked on 1 November 2026 against Dust2.us coverage of the 21 January 2026 update. Layout and callouts were checked against CritFeed's Poseidon callouts, Winio's Poseidon guide and swap.gg.
Frequently asked questions
How many bombsites does Poseidon have?
One. The single site is called A, and Default is the most common plant spot.
When was Poseidon added to CS2?
Valve added Poseidon to the Wingman pool on 21 January 2026, together with Sanctum.
Is Poseidon in Premier or Competitive?
No. Poseidon is a Wingman map for 2v2. Check the Wingman map list in game to see if it is in rotation today.
