Free games like Operation Thunder
Below are 9 free-to-play Steam games similar to Operation Thunder, 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 Operation Thunder page.
Ranked picks
- 1

STRAFTAT
Free-to-play alternative to Operation Thunder — no purchase or trial window. Shares Action with Operation Thunder.
STRAFTAT is a 1v1/2v2 ONLINE first person SHOOTER with quick rounds in over 350 MAPS ; Including all WEAPONS, proximity chat and 4 players FFA.
- 2

Counter-Strike:Global Offensive
Free-to-play alternative to Operation Thunder — no purchase or trial window. Shares Action with Operation Thunder.
Counter-Strike:Global Offensive (CS:GO) expands upon the team-based action gameplay that it pioneered when it was launched over 2 decades ago. CS:GO features new maps, characters, weapons, and game modes, and delivers updated versions of the classic CS content (de_dust2, etc.).
- 3

Awaria
Free-to-play alternative to Operation Thunder — no purchase or trial window. Shares Action and Indie with Operation Thunder.
Awaria is a short game about working in haunted maintenance tunnels.
- 4

Grimm's Hollow
Free-to-play alternative to Operation Thunder — no purchase or trial window. Shares Indie with Operation Thunder.
A spooky, freeware RPG where you search the afterlife for your brother. Reap ghosts with your scythe, explore haunted caves, and eat ghostly treats on your journey through death.
- 5

The Expendabros
Free-to-play alternative to Operation Thunder — no purchase or trial window. Shares Action and Indie with Operation Thunder.
The Expendabros have assembled and set their sights on the forces of ruthless arms dealer Conrad Stonebanks in the forests of Eastern Europe.
- 6

Iron Snout
Free-to-play alternative to Operation Thunder — no purchase or trial window. Shares Action and Indie with Operation Thunder.
Iron Snout is a fast, colorful and brutal fighting game in which you will be helping a piglet fight for its life against hordes of wolves.
- 7

Star Fetchers
Free-to-play alternative to Operation Thunder — no purchase or trial window. Shares Action and Indie with Operation Thunder.
The introduction to a wild ride with gangsters and deep state conspiracy theories
- 8

Magic Archery
Free-to-play alternative to Operation Thunder — no purchase or trial window. Shares Indie with Operation Thunder.
Train a commoner to become the greatest archer in this short incremental game! Increase your stats, gather wealth from quests, buy upgrades, and infuse your arrows with magic.
- 9

Thunder Tier One
Free-to-play alternative to Operation Thunder — no purchase or trial window. Shares Action with Operation Thunder.
Thunder Tier One is a realistic top-down shooter where you join an elite special operations team tasked with stopping a dangerous terrorist organization wreaking havoc across the fictional Eastern European country of Salobia.