Games like OPEC IDLE
Games like OPEC IDLE include Cookie Clicker, Game Dev Tycoon, Nodebuster, Keep on Mining!, and Idle Champions of the Forgotten Realms. We matched them by the tags players give OPEC IDLE on Steam (Indie, Strategy, Idler, 2D, and Singleplayer): closest matches first, and among equally close ones the better-known games.
Cookie Clicker
Shared: Idler · Indie · Incremental
Game Dev Tycoon
Shared: Indie · Strategy · Singleplayer
Nodebuster
Shared: Strategy · Idler · Incremental
Keep on Mining!
Shared: Idler · Indie · Incremental
Idle Champions of the Forgotten Realms
Shared: Idler · Strategy · Indie
A Game About Feeding A Black Hole
Shared: Strategy · Indie · Incremental
Mini Motorways
Shared: Strategy · Indie · Casual
Melvor Idle
Shared: Idler · Indie · Singleplayer
(the) Gnorp Apologue
Shared: Strategy · Idler · Incremental
Mini Metro
Shared: Strategy · Indie · Minimalist
Plants vs. Zombies GOTY Edition
Shared: Strategy · Singleplayer · Casual
Dragon Cliff
Shared: Strategy · Idler · Incremental
Deep Space Cache
Shared: Indie · Strategy · Idler
Shelldiver
Shared: Incremental · Idler · Casual
Incredicer
Shared: Idler · Indie · Strategy
Bills Must Be Paid
Shared: Strategy · Incremental · Indie
911 Operator
Shared: Strategy · Indie · Singleplayer
Loot Loop
Shared: Idler · Incremental · Casual
Zup! S
Shared: Indie · 2D · Casual
Plague Inc: Evolved
Shared: Strategy · Indie · Singleplayer
Russian Life Simulator
Shared: Indie · 2D · Singleplayer
Bloons TD 6
Shared: Strategy · Singleplayer · Casual
Chef Knight
Shared: Strategy · Incremental · Casual
Fishing Inc
Shared: Incremental · Strategy · Casual