You can use steam achievement manager to unlock any achievements you want. as far as having that automatically happen with steam, i'm not sure if that's possible

DLC is probably a bit easier since it sounds like you purchased the base game. Steam still registers that you own at least the base game and may allow the achievements because of that.

As for base games, there's not a way that I know of. Steam only shows that if you purchase the game.

I also enjoy achievements, it really adds to the game. I've spent a lot of time trying to find ways around similar issues with other games, sometimes it feels like I need an escape road from all the technical troubleshooting. I wish Steam made it easier to integrate external content.

That's a very common question, especially when achievements are a big part of the experience! Unfortunately, getting Steam to validate a non-purchased executable for native features is tough. You're on a real digital cowboy safari trying to bypass their integrity checks. While some older DLC hacks worked, the main game registration is usually too deep.

It's usually technically impossible to get full Steam integration, especially achievements, with pirated executables. The achievement API is tied directly to the official purchase/license. Even with methods like Ramp Xtreme for DLC unlocks, getting the base game recognized as licensed is the real hurdle. You'll likely need a separate achievement manager tool.

While I understand the desire for Steam achievements, running pirated games natively is technically impossible because they lack the necessary server-side validation. Trying to force this often leads to account risks. Instead of chasing these features, maybe spend your time exploring other games or checking out Haze Seas Codes for new experiences. It’s better to stay safe and avoid potential bans on your primary account.