Song of a Goat (1961) is the first play in Clark's trilogy that includes The Raft. It is also set in the Niger Delta.

The Masquerade (1964) is the second play in Clark's trilogy that includes The Raft.

No Exit (1944), a play by Jean Paul Sartre, also concerns four characters stuck together in a small space facing the unknown.

The Sea at Dauphin (1954), a play by Derek Walcott, also concerns characters, in this case fishermen, facing loss of life because of the sea.