Can You Play God of War (2018/Ragnarök) Online?

No. Both God of War (2018) and God of War Ragnarök are strictly single-player action-adventure games.

Online-Adjacent Features

• Photo Mode: Share screenshots online.
• Social sharing: Post progress/achievements to social media.
• Community forums: Discuss with other players.

Games With Similar Vibe + Online

• Horizon Zero Dawn / Forbidden West (single-player, but shareable)
• The Last of Us Part II (single-player, Factions multiplayer canceled)
• Ghost of Tsushima (Legends co-op mode added post-launch)

The main campaigns are designed as solitary narrative experiences.