While widespread Steam or Epic Games account bans for DLC unlocking are rare, they are not impossible. Users often recommend testing it on a "burner" (secondary) account first to protect their main library. Summary Table Risk Category Explanation System Safety Generally Safe
Before downloading, run through this checklist. If you answer "No" to any of the first three, the answer is is koalageddon safe
Some users report years of use without a ban. This is luck, not safety. Valve bans in waves, not instantly. While widespread Steam or Epic Games account bans