Games like Vectorio
Games like Vectorio include Factorio, Mindustry, Satisfactory, Bloons TD 6, and The Riftbreaker. We matched them by the tags players give Vectorio on Steam (Base Building, Tower Defense, Automation, Multiplayer, and Online Co-Op): closest matches first, and among equally close ones the better-known games.

Factorio
Shared: Base Building · Automation · Resource Management

Mindustry
Shared: Base Building · Automation · Tower Defense

Satisfactory
Shared: Base Building · Automation · Multiplayer

Bloons TD 6
Shared: Tower Defense · Multiplayer · Strategy

The Riftbreaker
Shared: Base Building · Tower Defense · Multiplayer

Palworld
Shared: Multiplayer · Online Co-Op · Base Building

shapez
Shared: Base Building · Automation · Resource Management

Hydroneer
Shared: Base Building · Automation · Multiplayer

7 Days to Die
Shared: Multiplayer · Base Building · Online Co-Op

Oxygen Not Included
Shared: Base Building · Resource Management · Sandbox

Dyson Sphere Program
Shared: Base Building · Automation · Resource Management

Legion TD 2 - Multiplayer Tower Defense
Shared: Tower Defense · Multiplayer · Strategy

Valheim
Shared: Online Co-Op · Multiplayer · Base Building

Raft
Shared: Multiplayer · Base Building · Online Co-Op

Enshrouded
Shared: Base Building · Multiplayer · Online Co-Op

Terraria
Shared: Multiplayer · Sandbox · Online Co-Op

Bloons TD 5
Shared: Tower Defense · Strategy · Multiplayer

Prison Architect
Shared: Base Building · Sandbox · Strategy

Per Aspera
Shared: Base Building · Online Co-Op · Automation

The Last Caretaker
Shared: Base Building · Automation · Sandbox

Green Hell
Shared: Multiplayer · Online Co-Op · Base Building

Outpath
Shared: Base Building · Automation · Resource Management

The Riftbreaker: Prologue
Shared: Base Building · Multiplayer · Online Co-Op

V Rising
Shared: Base Building · Multiplayer · Online Co-Op