1. What does it mean?
득템 means obtaining a desirable item. The expression comes from gaming vocabulary about acquiring items and also works for a satisfying purchase, a bargain, or a lucky find.
Also written or said as 득템하다, deuktem
2. The nuance
The emphasis is on the speaker's excitement, not a guarantee that something is rare or inexpensive. A secondhand book can be a 득템 just as much as game equipment. In a shop caption, read it as enthusiasm rather than evidence of value.
3. Examples
“절판된 책을 중고 서점에서 득템했어.”
I scored an out-of-print book at a secondhand bookstore.
“마지막 상자를 열었더니 필요한 장비를 득템했어.”
I opened the final box and got the equipment I needed.
Sources
KoreanClass101: Korean language lessons
References support the meaning and usage. Example sentences are written for NoCapWiki.