tipster

plural tipsters

1. A person who provides tips or advice to others, for example on the form of racehorses or the stock market.First known use later 19th c.
2. informalvideo gamesOne who provides tips or hints on how to succeed at a game.

   Does anybody know what Jon Riglar is doing now? (SU Tipster for about 6 years - Zapchat!).

   1995, Stephen Smith, “Zub - Hidden Game?”, in comp.sys.sinclair (Usenet)

   2 more examples

   Absent from the pages of CRASH for a year, ex-tipster Robin Candy returns and puts finger to key to debate the state of the games software industry.

   1987 June, CRASH, number 41

   Those are the two choice words top tipster Rich Pelley used to describe the monthly helpathon that is the one and only COMPLETE CONTROL.

   1994, “Amiga Power”, in magazine, number 42