Games like New Citizen - Alpha
Games like New Citizen - Alpha include Black Desert, 鬼谷八荒 Tale of Immortal, Kenshi, Disney Dreamlight Valley, and Internet Cafe Simulator 2. We matched them by the tags players give New Citizen - Alpha on Steam (Exploration, Tactical RPG, Immersive Sim, Sandbox, and PvE): closest matches first, and among equally close ones the better-known games.

Black Desert
Shared: Exploration · Sandbox · PvP

鬼谷八荒 Tale of Immortal
Shared: Sandbox · Tactical RPG · Exploration

Kenshi
Shared: Sandbox · Immersive Sim · Strategy RPG

Disney Dreamlight Valley
Shared: Exploration · Life Sim · Sandbox

Internet Cafe Simulator 2
Shared: Exploration · Sandbox · Life Sim

Mount & Blade II: Bannerlord
Shared: Sandbox · Strategy · RPG

The Elder Scrolls Online - Standard Edition
Shared: Exploration · RPG · PvP

Terraria
Shared: Sandbox · Exploration · PvP

EVE Online
Shared: Exploration · Sandbox · Adventure

Crusader Kings III
Shared: Strategy · RPG · Sandbox

Heroes' Vow: Three Kingdoms
Shared: Tactical RPG · RPG · Strategy

Dune: Awakening
Shared: Exploration · Sandbox · PvE

Mortal Online 2
Shared: Sandbox · PvP · Exploration

Farever
Shared: RPG · Exploration · Action RPG

江湖十一
Shared: Exploration · Sandbox · Tactical RPG

Totally Accurate Battle Simulator
Shared: Sandbox · Strategy · Simulation

SPORE™
Shared: Sandbox · Exploration · Simulation

BidKing
Shared: Life Sim · Strategy · Exploration

Pax Dei
Shared: Sandbox · Exploration · PvP

Avorion
Shared: Exploration · Sandbox · PvE

The Scroll of Taiwu : Beyond The Dome
Shared: Sandbox · RPG · Strategy

My Time at Portia
Shared: Life Sim · RPG · Sandbox

Goat Simulator 3
Shared: Exploration · Sandbox · Simulation