Head to head

Once Human vs Sea Fortress

Once Human

Live

42k – 150k daily

Sea Fortress

Live

Side by side

Values shared by both games are highlighted.

Status

ACTIVE

Released

July 2024 · 2 years ago

May 2019 · 7 years ago

Daily players

42k – 150k

No population data

Estimated players

288.4k2.6%

—

Available on

Windows
Android
iOS
PlayStation

Android
iOS

Platforms

Perspectives

Third Person

Isometric

Player activity

Smoothed estimated players over time.

Once HumanSea Fortress

Once Human

Average monthly estimated players
Month	Estimated players	Change
August 2026	~294.1k	Up 0.5%
July 2026	~292.5k	—

Sea Fortress

Average monthly estimated players
Month	Estimated players	Change
August 2026	—	—
July 2026	—	—

Community breakdown

Steam, Discord, Reddit, Twitch, and YouTube activity for both games, side by side.

Steam concurrent players

Once Human: 14.3kDown 26%
Sea Fortress: —

Once Human currently has 14,314 peak concurrent Steam players; no comparable data is tracked for Sea Fortress.

Discord members

Once Human: 775.5kDown 0.1%
Sea Fortress: —

Once Human currently has 775,537 Discord members; no comparable data is tracked for Sea Fortress.

Reddit members

Once Human: 104.3kUp 0.9%
Sea Fortress: —

Once Human currently has 104,350 subreddit members; no comparable data is tracked for Sea Fortress.

Twitch viewers

Once Human: 1.6kDown 44%
Sea Fortress: —

Once Human currently has 1,588 live Twitch viewers; no comparable data is tracked for Sea Fortress.

YouTube subscribers

Once Human: 325k
Sea Fortress: —

Once Human currently has 325,000 YouTube subscribers; no comparable data is tracked for Sea Fortress.

How these estimates are made

Once Human

Once Human is estimated to have 42k – 150k players a day. Around 2m – 6m accounts have played it in total. The range is anchored on Steam’s official concurrent-player and review counts, then converted to daily actives and accounts — so it covers the Steam player base and will under-count a game played mostly through its own launcher or on console.