Games like Mantis Clicker

An idle game about making cookies! Originally released in 2013 on the web, and actively developed since then. This is the official version for Steam.

Chillquarium is a cozy and relaxing idle game. Buy fish and raise them in real time, then sell them to turn a profit! Customize your aquarium as you progress from a simple starter tank to your dream setup by filling your collection with rare exotic fish and ultra-rare color variants!

A new creature collecting clicker game in which your goal is to capture all of the 50+ creatures, level them up to make them do more DPS and ascend them to gain better abilities. Unlock legendary variants and defeat all of the raid bosses & every hour get a steam creature you can trade, buy or sell!

Assemble your adventure squad on the desktop! Classic RPG meets idle play—no grind, no stress, just nonstop progress. Your heroes fight, level up, and loot while you work or study. Explore rich classes, powerful skills, and thrilling gear drops. RPG excitement, anytime, anywhere!

A chill idle-fishing desktop toy in the corner of your screen. Buy upgrades, catch rare fish, and customize your avatar at your own pace!

A goofy idle clicker about bananas. Click it, buy upgrades from a cast of strange characters, catch slices, survive banana storms and black holes, and dress your banana in astronaut helmets and devil horns. When the run tops out, ascend and start again stronger.

Face waves of enemies automatically and create builds by distributing stat points, leveling up equipment, choosing passive skills, summons and more. An idle game about killing hordes of enemies, becoming stronger, and exploring an unfolding storyline. A spin-off of Nomad Survival.

In Plantera you build your own garden and watch it grow with new plants, bushes, trees and animals. As you play and expand your garden you will attract Helpers, round blue creatures that will help you with your harvesting tasks.

A cozy 2D pixel art idle/clicker game where you build and manage your own ant colony! Gather resources, upgrade workers, unlock new workshops, and prestige to move to a new colony.

Inspired by RuneScape, Melvor Idle takes the core of what makes an adventure game so addictive and strips it down to its purest form! This is a feature-rich, idle/incremental game combining a distinctly familiar feel with a fresh gameplay experience. Maxing 20+ skills has never been more zen.

Dragon Cliff is a Semi-Idle RPG game with deep and complex itemization/skill systems to support endless character builds. Players are to collect adventurers, kill monsters, advance talent trees, enchant/reforge equipment, discover scrolls and finally assemble the most powerful adventure team!

Collect quadrillion of coins, hatch pets to mine for you, and unlock 100 unique hand-crafted areas! An incremental clicker/idle creatures-collection adventure. Dopamine heaven has arrived!

An incremental game where you kill hordes of slimes and use their loot to become stronger and farm them. Collect powerful loot, master skills, and uncover tons of content.

Put Fischer on your desktop as your ultimate study and work buddy. He'll fish quietly in the corner, taking care of it all—you just drop in occasionally to collect your rewards, unlock new fish, upgrade your rod, while enjoying that calming, healing atmosphere.

An idle fishing game at the edge of your desktop. Visit six alien seas, collect 120 species in 700+ forms, and unlock in-game foil cards. Decorate your aquarium, cook 150 dishes for strange guests, breed fish, and send takeout by rocket while you work or unwind.

"Alice's Gaze" is a dark fairy-tale clicker and idle game. Accompany Alice as she awakens in a strange mansion, gaze upon the cat god's altar, delve into the abyss of terror, revive the slumbering rooms one by one, and search for a way to escape.

Joyquarium is a relaxing casual fish-raising game. Buy various cute fry and sell them at a high price after they grow up. With the money you earn, you can purchase aquatic plants, driftwood, scenery stone, etc. to decorate your tank (you can freely adjust the color, size, and position).

Little Aviary is a relaxing idle bird collector that sits at the bottom of your screen! Hatch unique birds, sell them, decorate, then watch them fly around your screen and perch on top of your other windows!