Games like Alexandria IV
Games like Alexandria IV include Slay the Princess — The Pristine Cut, STEINS;GATE, The Invincible, I Wani Hug that Gator!, and LoveChoice. We matched them by the tags players give Alexandria IV on Steam (Sci-fi, Diplomacy, Lore-Rich, Aliens, and Visual Novel): closest matches first, and among equally close ones the better-known games.

Slay the Princess — The Pristine Cut
Shared: Visual Novel · Story Rich · Choose Your Own Adventure

STEINS;GATE
Shared: Sci-fi · Visual Novel · Story Rich

The Invincible
Shared: Sci-fi · Adventure · Space

I Wani Hug that Gator!
Shared: Visual Novel · Story Rich · Choose Your Own Adventure

LoveChoice
Shared: Romance · Visual Novel · Story Rich

Suzerain
Shared: Visual Novel · Choose Your Own Adventure · Story Rich

The Life and Suffering of Sir Brante — Chapter 1&2
Shared: Diplomacy · Choose Your Own Adventure · Visual Novel

The Hungry Lamb: Traveling in the Late Ming Dynasty
Shared: Visual Novel · Story Rich · Interactive Fiction

Love Is All Around
Shared: Visual Novel · Romance · Story Rich

The Wolf Among Us
Shared: Story Rich · Choose Your Own Adventure · Visual Novel

STEINS;GATE 0
Shared: Sci-fi · Visual Novel · Story Rich

Mass Effect™ Legendary Edition
Shared: Sci-fi · Story Rich · Space

The Life and Suffering of Sir Brante
Shared: Story Rich · Visual Novel · Choose Your Own Adventure

Star Trek: Voyager - Across the Unknown
Shared: Sci-fi · Choose Your Own Adventure · Aliens

Quarantine Circular
Shared: Visual Novel · Diplomacy · Aliens

Lightracer Spark
Shared: Sci-fi · Visual Novel · Lore-Rich

Aliya: Timelink
Shared: Visual Novel · Sci-fi · Interactive Fiction

Halo: The Master Chief Collection
Shared: Sci-fi · Story Rich · Aliens

Lucy -The Eternity She Wished For-
Shared: Visual Novel · Story Rich · Romance

The Three Kingdoms: Rebirth
Shared: Visual Novel · Romance · Story Rich

OPUS: Echo of Starsong - Full Bloom Edition
Shared: Visual Novel · Story Rich · Interactive Fiction

Florence
Shared: Story Rich · Romance · Adventure

Detroit: Become Human
Shared: Story Rich · Sci-fi · Adventure

ATRI -My Dear Moments-
Shared: Visual Novel · Story Rich · Romance