If you were hooked by how Norman, Beth, and Harry start doubting their own minds once the black sphere begins manifesting their subconscious—cue the giant squid and impossible storms—you'll love how the expedition into Area X unravels sanity. In Annihilation, a small research team confronts an unknowable environment that mirrors inner fears and desires, delivering the same eerie blend of science, secrecy, and psychological slippage you felt in the underwater habitat.

You enjoyed the procedural pulse of the underwater mission—cataloging anomalies, running tests, and debating hypotheses as the team circles the sphere and deciphers the "UNKNOWN" message. The Andromeda Strain channels that same white-lab-coat tension: a specialized team in a high-tech facility races to understand an alien microbe before it escapes containment, with meticulous experiments, escalating alarms, and coolheaded deduction driving the mystery.

If the tight, pressure-cooker setting around the sunken spacecraft—just a handful of people and the inscrutable sphere—pulled you in, Solaris offers that same intimate isolation. A small crew on a space station grapples with an alien ocean that materializes their memories, much like the sphere draws manifestations from the team. The close quarters, strained conversations, and eerie visitations echo the claustrophobic, soul-probing atmosphere you liked.

Loved the nuts-and-bolts survival—the oxygen scrambles, habitat repairs, and improvisation under the crushing weight of the abyss? The Martian gives you that same adrenaline of “figure-it-out-or-die.” Mark Watney MacGyvers life-support, power, and comms the way the team in Sphere jury-rigs systems during storms and creature attacks, turning technical know-how and calm logic into edge-of-your-seat survival.

If the late-game reveals in Sphere—from the time-tossed "USS" ship to the realization that the horrors are the crew’s own subconscious projections—made you grin, Recursion is your next twisty thrill. It layers reality-warping technology over a heartfelt race against consequences, delivering those delicious “wait, what?” moments that force you to reinterpret every earlier scene, just like the sphere’s true nature does.