Question: What type of period does Modern Drummer and PC Gamer have in common?

Context paragraphs:
Þórólfur Beck Kristjónsson: Þórólfur Beck Kristjónsson (Thorolfur Beck Kristjonsson) (born April 14, 1974) is an entrepreneur, game designer and producer best known for co-founding the video game company CCP Games and creating the board game Hættuspil (Danger Game).  Hættuspil remains one of Iceland's most popular board games and CCP's video game EVE Online currently has 500,000 users.  EVE also went on to win awards from PC Gamer magazine and MMORPG.com.

Heroes of Might and Magic II: Heroes of Might and Magic II: The Succession Wars is a turn-based strategy video game developed by Jon Van Caneghem through New World Computing and published in 1996 by the 3DO Company.  The game is the second installment of the "Heroes of Might and Magic" series and is typically credited as the breakout game for the series.  "Heroes II" was voted the sixth-best PC game of all time by "PC Gamer" in May 1997.

Modern Drummer: Modern Drummer is a monthly publication targeting the interests of drummers and percussionists.  The magazine features interviews, equipment reviews, and columns offering advice on technique, as well as information for the general public.  "Modern Drummer" is also available on the internet.

Rome: Total Realism: Rome: Total Realism (or RTR) is a complete modification pack originally created by the Total War Center user GaiusJulius for the computer game "", intended to rectify historical inaccuracies in the original game.  The mod has been featured in several major gaming sites and magazines, such as "PC Gamer (US)", "PC Gamer (UK)", and GameSpot.  Recent versions of RTR include : Grand Campaign, which uses the newer "" (expansion to "Rome: Total War") engine.  The mod further improves historical accuracy and introduces new game-play concepts.  The last RTR VII series patch was released in 2012.

Mikee Plastik: Mikee Plastik is an American composer, actor, and artist.  Mikee Plastik was born Michael Scott Hollash in Tampa, FL, on November 9, 1976.  He is mostly known through his work in the music industry.  Early on, Plastik signed a licensing deal with Cleopatra Records, having a couple of his tracks released worldwide through compilation albums.  He was a founding member of the band Grim Faeries, which featured members of My Life With The Thrill Kill Kult, Pigface, and a former touring stage performer from U2.  They became known through their work on the legendary MMORPG PC gaming franchise Ultima Online, when they were contracted by Origin Systems to provide a reworked version of their single "Love Is Hell" for the official promotional trailer for the developing Ultima Online 2.  The trailer was first released on a promotional DVD sampler in the June 2000 issue of PC Gamer, giving the subscribing fanbase their first glimpse of what was to come.  The Grim Faeries full length album "The Disenchanted Forest" and various compilations that they were featured on, which Plastik wrote and tracked the guitar parts on, were either released or handled by Invisible Records and were distributed through Caroline Records.  Over the years, Mikee Plastik has collaborated and recorded with various cutting edge bands and artists on their releases, such as Hate Dept., Pete Jones (Public Image Limited / Department S), Pigface, Psychotica, Team Cybergeist, and many others.  Most recently, he and Pete Jones were brought in and collaborated together recording and producing two tracks on the Patrick Briggs album "Pervert".  Over the years, Plastik has written and composed for film and TV around recording within the record industry.  He has placed his primary focus on film underscoring more recently.

One Night Trilogy: The One Night Trilogy is the collective title for a series of freeware indie psychological horror games developed by Dark Gaia Studios using the "RPG Maker VX" engine.  The games were released over a three-year period across the indie gaming community and elsewhere, have been showcased in "PC Gamer" magazine twice since their release and consistently feature in countdowns of the best games created with the RPG Maker engine.  The three games do not follow in chronological order.

Supreme Commander (video game): Supreme Commander is a real-time strategy video game designed by Chris Taylor and developed by his company, Gas Powered Games.  The game is considered to be a spiritual successor to Taylor's 1997 game "Total Annihilation", alongside the "Spring" remake.  First announced in the August 2005 edition of "PC Gamer" magazine, the game was released on February 16, 2007 in Europe and February 20, 2007 in North America.  A standalone expansion, "", was released on November 6 of the same year.  A sequel, "Supreme Commander 2", has also been released.

Gary Whitta: Gary Leslie Whitta (born 21 July 1972) is an English screenwriter, author, game designer, and video game journalist.  He is known as the former editor-in-chief of both the UK and US editions of "PC Gamer" magazine and contributor to gaming magazine "ACE".

PC Gamer: PC Gamer is a magazine founded in the United Kingdom in 1993 devoted to PC gaming and published monthly by Future plc.  The magazine has several regional editions, with the UK and US editions becoming the best selling PC games magazines in their respective countries.  The magazine features news on developments in the video game industry, previews of new games, and reviews of the latest popular PC games, along with other features relating to hardware, mods, "classic" games and various other topics.

Matt Bielby: Matt Bielby is a magazine editor based in the UK.  He is best known for launching and editing many successful titles in assorted markets during the 1990s, mostly on the subjects of computer and video games, and film and television.  These include ". net", "Amiga Power", "Super Play" and "PC Gamer".

Supporting paragraphs: Modern Drummer PC Gamer
Answer: monthly