Subnautica Depth Range Comparison (Crush Depths)
Compare Subnautica vehicle crush depths from Seamoth 200 to Cyclops and PRAWN 1700 max. Uses Unknown Worlds 2018 module tables. Includes full tables and FAQ.
Visual comparison
All values
Click any row to load it as Entry A.
| Name | Value | Context | Source |
|---|---|---|---|
| Seamoth base Lowest vehicle here. | 200 m (656.2 ft) | Crush depth no module | Subnautica 2018 Fandom Seamoth infobox Hull Integrity: No Modules 200 m |
| Seamoth Depth MK1 Beats base by 100. | 300 m (984.3 ft) | Vehicle Upgrade Console plus 100 | Subnautica 2018 Fandom Seamoth Upgrades table: MK1 300 m |
| Seamoth Depth MK2 Beats MK1 by 200. | 500 m (1,640.4 ft) | Upgrade console plus 200 more | Subnautica 2018 Fandom Seamoth Upgrades table: MK2 500 m |
| Cyclops base Ties Seamoth MK2. | 500 m (1,640.4 ft) | Crush depth no module | Subnautica 2018 Fandom Cyclops infobox Hull Integrity: No Depth Module 500 meters |
| Seamoth Depth MK3 Top Seamoth. Beats base 4.5x. | 900 m (2,952.8 ft) | Max Seamoth depth | Subnautica 2018 Fandom Seamoth Upgrades table: MK3 900 m |
| PRAWN base Ties Seamoth max. Guess 400 left out. | 900 m (2,952.8 ft) | Crush depth no module | Subnautica 2018 Fandom Prawn Suit infobox Hull Integrity: No Modules 900 m |
| Cyclops Depth MK1 Ties PRAWN base. | 900 m (2,952.8 ft) | Plus 400 over base | Subnautica 2018 Fandom Cyclops Upgrades table: MK1 900 m |
| Cyclops Depth MK2 Beats MK1 by 400. | 1,300 m (4,265.1 ft) | Plus 400 more | Subnautica 2018 Fandom Cyclops Upgrades table: MK2 1300 m |
| PRAWN Depth MK1 Ties Cyclops MK2. | 1,300 m (4,265.1 ft) | Increases by 400 meters | Subnautica 2018 Fandom Prawn Upgrades: increases by 400 meters MK1 1300 m |
| Cyclops Depth MK3 Ties PRAWN max. | 1,700 m (5,577.4 ft) | Max sub, fully upgraded | Subnautica 2018 Fandom Cyclops Overview: capable of diving to 1700 meters fully upgraded |
| PRAWN Depth MK2 Largest tie here. | 1,700 m (5,577.4 ft) | Max Prawn suit | Subnautica 2018 Fandom Prawn Upgrades table: MK2 1700 m |
About this converter
Crush depth caps how deep each Subnautica vehicle can dive. Seamoth starts at 200 meters with no module, then climbs to 300 with MK1, 500 with MK2 and 900 with MK3 max. Cyclops starts at 500 with no module, then climbs to 900 with MK1, 1300 with MK2 and 1700 with MK3 fully upgraded. PRAWN starts deep at 900 with no module, then climbs to 1300 with MK1 and 1700 with MK2 max. Each vehicle module adds a fixed jump crafted at upgrade consoles. Seaglide has no crush depth number and stays out.
How to use it
Pick two entries and a unit in the top row. The three boxes below stay linked. Change any box and the other two update. Try PRAWN max against Seamoth base to see the 1700 to 200 gap. The result line prints the equality plus the per unit ratio. Click a table row to load that entry as Entry A with amount 1. Meters and feet interconvert.
PRAWN guesses of 400, 600 and 900 steps are wrong against the 900 base and are left out. Cyclops guesses missing MK3 1700 are completed here. Hull Integrity numbers equal crush depth meters in the infoboxes used. Omitted: lava zone ambient damage, which ticks apart from crush math.
FAQ
How deep is Seamoth max?
900 meters with MK3. Base 200, MK1 300, MK2 500 along the way.
How deep is Cyclops max?
1700 meters fully upgraded with MK3. Base 500, MK1 900, MK2 1300.
How deep is PRAWN max?
1700 meters with MK2. Base 900, MK1 1300.
Does Seaglide have a depth?
No crush depth number exists for it, so it stays out of this table.
Sources
- Unknown Worlds Subnautica 2018 Fandom Seamoth infobox Hull Integrity and Upgrades table: No Modules 200 m, MK1 300 m, MK2 500 m, MK3 900 m
- Fandom Prawn Suit infobox Hull Integrity: No Modules 900 m and Upgrades increases by 400 meters rows
- Fandom Cyclops infobox Hull Integrity: No Depth Module 500 meters and Upgrades MK1 900 m MK2 1300 m, Overview 1700 meters fully upgraded
Last verified: 2026-10-05 · 11 entries
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