Games like Alluna and Brie Re-Tentacled
Games like Alluna and Brie Re-Tentacled include Persona 3 Reload, Summer Memories, Volcano Princess, Tricolour Lovestory, and Metaphor: ReFantazio. We matched them by the tags players give Alluna and Brie Re-Tentacled on Steam (RPG, Anime, Time Management, Dating Sim, and Simulation): closest matches first, and among equally close ones the better-known games.

Persona 3 Reload
Shared: Anime · RPG · JRPG

Summer Memories
Shared: Anime · RPG · Nudity

Volcano Princess
Shared: RPG · Anime · Dating Sim

Tricolour Lovestory
Shared: Dating Sim · Anime · Simulation

Metaphor: ReFantazio
Shared: RPG · Anime · JRPG

Touhou Mystia's Izakaya
Shared: RPG · Time Management · Simulation

Digimon Story Time Stranger
Shared: RPG · Anime · JRPG

Persona 4 Golden
Shared: Anime · RPG · JRPG

Path Of Wuxia
Shared: RPG · Time Management · Dating Sim

Fields of Mistria
Shared: RPG · Dating Sim · Simulation

Persona 5 Royal
Shared: Anime · RPG · JRPG

AKIBA'S TRIP: Undead & Undressed
Shared: Anime · RPG · JRPG

Your Mom
Shared: Anime · Simulation · Nudity

Magical Princess
Shared: RPG · Anime · Simulation

Digimon World: Next Order
Shared: RPG · Anime · Simulation

DATE A LIVE: Rio Reincarnation
Shared: Anime · Dating Sim · RPG

小白兔电商~Bunny e-Shop
Shared: Anime · Dating Sim · Simulation

Rebellion GODSOUL: Awakening
Shared: RPG · Anime · JRPG

NEKOPARA Vol. 1
Shared: Anime · Dating Sim · Nudity

NEKOPARA Vol. 2
Shared: Anime · Dating Sim · Cute

NEKOPARA Vol. 0
Shared: Anime · Nudity · Cute

TOGETHER BnB
Shared: Dating Sim · Simulation · Sexual Content

Yusetsu
Shared: Dating Sim · JRPG · RPG

Swaying Girl
Shared: RPG · Dating Sim · Nudity