Recs if you like Lockdown (Escape from Furnace, #1)...

Tight spaces. Heavy air. The creeping realization that escape may not be possible. These are stories designed to make you feel trapped.

Recs welcome!

Mostly fantasy series not well known, with a few from other genres mixed in.

Books that feature characters being held captive, imprisoned, kidnapped, etc. If it is a series, only the first book is listed. Some may be captivity adjacent & added via recommendation.