What does 시참 mean?
I usually see '시참' attached to a name of a game, for example:

PUBG시참
Overwatch시참

But I can't figure out what does that word mean??

Question

What does 시참 mean?
I usually see '시참' attached to a name of a game, for example:

PUBG시참
Overwatch시참

But I can't figure out what does that word mean??

Answer

@Edjerha Oh! I see, thank you much! ^^

Answer

반갑습니다~!

'시참' is frequently used in game streaming and an abbreviation of '시청자 참여 (viewer participation)'. 
In the examples you gave, the game rooms are live streamed with viewer participation.

Don’t miss out on the opportunity to learn a language from the comfort of your own home. Browse our selection of experienced language tutors and enroll in your first lesson now!