Games like The Last Act
Games like The Last Act include LoveChoice, I Wani Hug that Gator!, Our Life: Beginnings & Always, ATRI -My Dear Moments-, and Senren * Banka. We matched them by the tags players give The Last Act on Steam (Casual, Choose Your Own Adventure, Dating Sim, Interactive Fiction, and Visual Novel): closest matches first, and among equally close ones the better-known games.

LoveChoice
Shared: Dating Sim · Romance · Visual Novel

I Wani Hug that Gator!
Shared: Choose Your Own Adventure · Visual Novel · Dating Sim

Our Life: Beginnings & Always
Shared: Visual Novel · Dating Sim · Choose Your Own Adventure

ATRI -My Dear Moments-
Shared: Visual Novel · Casual · Dating Sim

Senren * Banka
Shared: Dating Sim · Visual Novel · Casual

Doki Doki Literature Club Plus!
Shared: Dating Sim · Visual Novel · Cute

Love Is All Around
Shared: Dating Sim · Visual Novel · Romance

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

CLANNAD
Shared: Visual Novel · Dating Sim · Romance

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

Emily is Away <3
Shared: Dating Sim · Casual · Choices Matter

Florence
Shared: Casual · Cute · Romance

Lucy -The Eternity She Wished For-
Shared: Visual Novel · Dating Sim · Cute

If My Heart Had Wings
Shared: Dating Sim · Visual Novel · Cute

恋爱绮谭 不存在的真相
Shared: Interactive Fiction · Dating Sim · Visual Novel

Love, Money, Rock'n'Roll
Shared: Visual Novel · Romance · Choose Your Own Adventure

Volcano Princess
Shared: Dating Sim · Choices Matter · Visual Novel

Scarlet Hollow
Shared: Visual Novel · Dating Sim · Interactive Fiction

BAD END THEATER
Shared: Visual Novel · Choose Your Own Adventure · Story Rich

The NOexistenceN of you AND me
Shared: Visual Novel · Interactive Fiction · Cute

Knowledge, or know Lady
Shared: Dating Sim · Visual Novel · Romance