AI · alternatives · 2026

24 alternatives to World Simulator

Create and Play AI Virtual Worlds

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1
Anything World▲222
Create 3D worlds with your voice
2020 · everythinguniver.se · its alternatives →
2
AI-town, run your own custom AI world SIM with JavaScript▲429
Hi HN community! We want to share AI-town, a deployable starter kit for building and customizing your own version of AI simulation - a virtual town where AI characters live, chat and socialize. Inspired by great work from the Stanford Generative Agent paper (https://arxiv.org/abs/2304.03442). A few features: - Includes a convex.dev backed server-side game engine that handles global state - Multiplayer ready. Deployment ready - 100% Typescript - Easily customizable. You can fork it, change character memories, add new sprites/tiles and you have a custom AI simulation…
2023 · github.com · its alternatives →
3
inZOI▲193
Life simulation where every life becomes a story
2025 · playinzoi.com · its alternatives →
4
VRChat▲116
Create and play in virtual worlds with others
2018 · hello.vrchat.com · its alternatives →
5
My Adventures AI▲11
Build your own fictional worlds and explore them with AI
2024 · myadventures.ai · its alternatives →
6
Exists▲132
Generate your own 3D worlds and team-deathmatch in minutes
2025 · exists.ai · its alternatives →
7
Virtuali▲164
Meet people, create an avatar & experience a virtual world
2021 · its alternatives →
8
SIMA 2▲204
Google's most capable AI agent for virtual 3D worlds
Nov 2025 · deepmind.google · its alternatives →
9
Inworld Arcade▲189
Do our AI characters pass the Turing test, you tell us
2022 · inworld.ai · its alternatives →
10
AI Adventure▲145
Turn your favorite stories into adventure games for free
2023 · its alternatives →
11
In Another Life▲5
AI Driven narrative game to explore different worlds
2024 · metabook.ai · its alternatives →
12
Veltos.ai▲185
Create games & 3D models with just a prompt
2025 · veltos.ai · its alternatives →
13
Altworld.io▲6
The AI life sim where the world actually remembers
Jul 2026 · altworld.io · its alternatives →
14
WorldOS – A fully customizable AI simulation sandbox game▲6
WorldOS simulates living AI worlds: chat with characters, watch social feeds react, trade in-world stocks, browse a generated web. Create your own world from composable apps and share it on WorldOS.cc.
Jun 2026 · worldos.cc · its alternatives →
15
Friends & Fables▲106
AI TTRPG and world building game
2024 · fables.gg · its alternatives →
16
Pee World VR▲130
Go virtually anywhere
2016 · peeworldvr.com · its alternatives →
17
Immersim AI▲5
Immersive role-play, storytelling, and podcast in any world
2024 · its alternatives →
18
Worlds Exploration▲2
Solo, voice-driven D&D with an AI dungeon master
Jul 2026 · apps.apple.com · its alternatives →
19
Prompt Quest Ai Simulations▲15
Interactive simulations for real world decisions
2025 · promptquest.co · its alternatives →
20
Simulator by GoPractice!▲97
Learn growth and data-driven product management in Simulator
2019 · gopractice.io · its alternatives →
21
Pluto▲131
Create your virtual world in one click
2021 · pluto.world · its alternatives →
22
World Draw▲24
An AI tool that helps you draw by Google
2018 · worlddraw.withgoogle.com · its alternatives →
23
ST World Engine▲72
Player-created Virtual World
2022 · its alternatives →
24
Agora-1 by Odyssey▲84
A multi-agent world model you can play
May 2026 · agora.odyssey.ml · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →