Hi. We're just curious if you can give us an example of a solid 2D adventure game? We thought Limbo was an adventure game but when we googled, it says that it's a puzzle platformer. Thanks!

Sure!

Here are some recent ones:

Unavowed - https://store.steampowered.com/app/336140/Unavowed/

Lamplight City - https://store.steampowered.com/app/761460/Lamplight_City/

Gibbous - https://store.steampowered.com/app/914020/Gibbous___A_Cthulhu_Adventure/

Guard Duty - https://store.steampowered.com/app/872750/Guard_Duty/

And some old classics of the genre:

Space Quest series

King's Quest series

Monkey Island series

Full Throttle