Free games like Illegal Alien Tower Defense
Below are 8 free-to-play Steam games similar to Illegal Alien Tower Defense, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Illegal Alien Tower Defense page.
Ranked picks
- 1
ENA: Dream BBQ
Free-to-play alternative to Illegal Alien Tower Defense — no purchase or trial window.
Experience surreal environments and inexplicable characters as ENA in a new wild world.
- 2
The Looker
Free-to-play alternative to Illegal Alien Tower Defense — no purchase or trial window.
You wake up, alone, on a strangely familiar island full of puzzles that will frustrate and annoy you.
- 3
DORONKO WANKO
Free-to-play alternative to Illegal Alien Tower Defense — no purchase or trial window.
『DORONKO WANKO』 is a DORONKO Action Game. In this game, You can become a cute, innocent Pomeranian, make your master's home messy and dirty. "Will the master be angry with me?" Don't worry. Because you are a sweet doggie.
- 4
SuchArt: Creative Space
Free-to-play alternative to Illegal Alien Tower Defense — no purchase or trial window.
Paint on any surfaces with numerous tools in Creative Space — a free sandbox version of SuchArt: Genius Artist Simulator. Create masterpieces, complete commissions, and decorate your studio in the most advanced artist sim!
- 5
DOGWALK
Free-to-play alternative to Illegal Alien Tower Defense — no purchase or trial window.
Explore a hand-crafted winter forest as a big adorable dog and a little kid in tow. A short, free, open source project brought to you by Blender Studio.
- 6
Mizi NO!
Free-to-play alternative to Illegal Alien Tower Defense — no purchase or trial window.
In this free 2D puzzle game, you must reassemble broken objects that your cat has knocked over.
- 7
A Park Full of Cats
Free-to-play alternative to Illegal Alien Tower Defense — no purchase or trial window.
Welcome to 'A Park Full of Cats,' a hidden object game that invites you to revel in the enchanting world of amusement parks! Experience the thrill and excitement of the rides and give those cats the fun they truly deserve!
- 8
Stray Cats in Cozy Town
Free-to-play alternative to Illegal Alien Tower Defense — no purchase or trial window.
Welcome to Cozy Town, where every day is International Cat Day! Be part of a village community where every stray is respected, loved and fed. Explore the charming streets and alleys to discover all the stray cats in this hidden-object game.