Portal 2 vs Subnautica
On Steam, Portal 2 has 99% positive and Subnautica has 97% positive. Portal 2 has the higher displayed score on this source. On Metacritic, Portal 2 has 95/100 and Subnautica has 87/100. Portal 2 has the higher displayed score on this source. Each source stands on its own; these scores do not establish an overall winner. Reviewers most praise Portal 2 for story and narrative, and Subnautica for exploration and discovery.
Portal 2: 99% positive on Steam (465,160 reviews), and 95/100 on Metacritic (66 critic reviews) (snapshot Aug 11, 2026). Subnautica: 97% positive on Steam (378,204 reviews), and 87/100 on Metacritic (42 critic reviews) (snapshot Aug 12, 2026). The snapshots may have been collected on different dates.
Portal 2
Snapshot Aug 11, 2026
- story and narrative (15)
- puzzle design and mechanics (10)
- humor and dialogue (10)
- co-op mode (10)
- game crashes (1)
Subnautica
Snapshot Aug 12, 2026
- exploration and discovery (13)
- atmospheric world building (9)
- fear and horror elements (8)
- engaging story and lore (7)
- lack of in-game guidance (2)
- slow early game (2)
- limited inventory space (1)
- poor save system (1)