Forums in the Mobile Game Niche

1. Apolyton Civilization Site
Just missed out on a spot in the top 25.
https://apolyton.net/forum.php  

2. PetGroomer.com GroomerTALK and
Pet grooming forum for dog and cat groomers and mobile.
http://www.petgroomerforums.com/chat/forum.php  

3. GameSpot
Join the discussion around video game news, reviews, previews, and walkthroughs for the PS4, Xbox One, PS3, Xbox 360, Wii, PC, 3DS, and DS.
https://www.gamespot.com/forums/  

4. Fan Clubs
Fan Clubs is an online community where fans of sports, gaming, and entertainment can connect with people who share similar interests.
https://www.talkwhateveronline.com/  

5. www.ivory.co.uk
Enter the Ivory Game Maker UK Forum to discuss all things board game related. If you need help making a new game, maybe the help of others would be beneficial.
https://www.ivory.co.uk/gamemaker/forum  

6. PPCGeeks
PPCGeeks is a site for PPC owners with discussion, reviews, news, links, downloads, and much much more. We cover Windows Mobile, Android, Windows Phone 7, Blackberry, iOS, and tablets.
http://forum.ppcgeeks.com/  

7. Game Career Guide Forums
Learn everything you need to know to get into the videogame industry!
http://www.gamecareerguide.com/forums/  

8. Games Dreams
Welcome to Games Dreams - Discussion forums for Facebook games, browsers games, MMO games, flash games, android games, iPhone iPad games, etc.
https://gamesdreams.com/  

9. Tech Support Guy
Free computer help.
http://forums.techguy.org/  

10. The PokéCommunity Forums
This is a Pokémon forum for Pokémon fans all over the world. Discussions include games, trading card game, strategies, TV series, movies, role play, fan fiction, and trivia
http://www.pokecommunity.com/  

11. BattleOn Forums!
https://forums2.battleon.com/f/  

12. Stargate SG-1 Roleplaying Game
https://stargatetherpg.com/forums/  

13. PSPgweber Forums
All general game discussion boards related to PSP, PS Vita and PS3. Game News, Updates, Questions, CWCheats, Themes, Tutorials, Emulators and more..
http://www.pspgweber.com/forums/  

14. World of Warplanes North American official forum
Forum has 6,711,289 members.
http://forum.worldofwarplanes.com/  

15. RPG Maker Forums
Forum has 113,434 topics.
https://forums.rpgmakerweb.com/  

16. NeoGAF
It's a video game message board on the internet
http://www.neogaf.com/forum/  

17. boardgamegeek.com
https://boardgamegeek.com/forums/region/1/bgg  

18. GP Forums
New Zealand's video gaming community-Games Discussion-Tech Discussion-Open Discussion-Administration-VIP Lounge-Game Communities-Battlefield-Counter-Strike-Dota 2
http://www.gpforums.co.nz/  

19. Home Theater Forum and Systems
A forum community dedicated to home theater owners and enthusiasts. Come join the discussion about home audio/video, home theaters, troubleshooting, projects, DIY’s, product reviews and more!
http://www.hometheatershack.com/forums/  

20. www.dreamincode.net
https://www.dreamincode.net/forums/  

21. RunningForums.com
This website is for sale! runningforums.com is your first and best source for all of the information you’re looking for. From general topics to more of what you would expect to find here,...
http://www.runningforums.com/index.php  

22. ChiefTalk Forum
https://chieftalk.chiefarchitect.com/  

23. VBForums
Visual Basic Discussions plus .NET, C#, game programming, and more (http://www.VBForums.com)
https://www.vbforums.com/forum.php  

24. rpggeek.com
https://rpggeek.com/forums  

25. Warrior Nation
Warrior Nation is about casual and competitive video game e-Sports expanding upon mind-shattering imagination within a world of virtual game play.
http://warriornation.net/Forum/  

26. Home Theater Forum
Home Theater Forum is a site dedicated to the love of all things cinema and film, home theater equipment and all varieties of home entertainment.
http://www.hometheaterforum.com/  

27. BRP Central - The Chaosium forums
https://basicroleplaying.org/  

28. Steve Jackson Games Forums
The SJ Games discussion forums.
https://forums.sjgames.com/  

29. Ubuntu Forums
A help and support forum for Ubuntu Linux.
http://ubuntuforums.org/  

30. Overclock.net
A forum community dedicated to overclocking enthusiasts and testing the limits of computing. Come join the discussion about computing, builds, collections, displays, models, styles, scales,...
http://www.overclock.net/f/  

31. Bulbagarden
The Original Pokémon Community
https://forums.bulbagarden.net/index.php  

32. Black Sea Studios Forums
Forum has 15,414 posts.
http://forums.blackseastudios.com/  

33. The Forums of Sir Terry Pratchett OBE
All the latest news and discussions about Terry Pratchett’s books, Discworld, events and more… Register here for the official Terry Pratchett forums
http://www.terrypratchettbooks.com/forum/  

34. Accessify Forum: Web Accessibility Discussion Forums
Discussion about making websites accessible to people with disabilities.
http://www.accessifyforum.com/  

35. Canadian TV, Computing and Home Theatre Forums
A forum community dedicated to Canadian TV, computing and home theatre owners and enthusiasts. Come join the discussion about home audio/video, displays, troubleshooting, styles, projects, DIY’s,...
http://www.digitalhome.ca/forum/  

36. www.daniweb.com
Programming Forum - Our Programming forum category encompasses application development, web development, programming theory, and everything in between.
https://www.daniweb.com/programming/4  

37. Arcade@Home™ Forums
https://www.arcadeathome.com/forums/  

38. Overclockers UK Forums
Overclockers UK Forum powered by Xenforo
http://forums.overclockers.co.uk/  

39. Xtreme Visual Basic Talk
XVBT is an interactive discussion forum for Visual Basic programmers. Topics include game programming, DirectX, COM, .NET, and API. To visit the forum, go to http:www.xtremevbtalk.com .
http://www.xtremevbtalk.com/  

40. PokéBeach.com Forums
A Pokémon forum to discuss the video games, TCG, and anime!
http://www.pokebeach.com/forums/  

41. elitepvpers
MMO Insider Forums - anything about Hacks, Bots, Cheats, Guides and more!
https://www.elitepvpers.com/forum/  

42. SparkPeople
SparkPeople's tools and content will help you find the right path, but our Community will help keep you on that path. Get motivation and support while having fun meeting others like you who are...
https://www.sparkpeople.com/myspark/mycommunity.asp  

43. Fantasy Football - Footballguys Forums
Forum has 11,992,505 posts.
https://forums.footballguys.com/forum/  

44. Bettingadvice forum
Bettingadvice Forums
https://forum.bettingadvice.com/  

45. GameTrailers
Forum has 14,078,088 posts.
http://forums.gametrailers.com/  

46. 3D Realms Forums
This is a discussion forum for fans of Apogee / 3D Realms to talk about various game related topics.
https://forums.3drealms.com/vb/  

47. Cable
Virgin Media (ex ntl & Telewest) Customer support and community forum
https://www.cableforum.co.uk/board/  

48. Java Forums at the Big Moose S
https://www.coderanch.com/forums/  

49. Toyark Toy Forums
The Toyark is a collector's community related to Toys and Action Figures. Features daily news and a diverse discussion forum.
https://www.toyark.com/forums/  

50. Against The Grain - Wet Shaving Forum
Wet shaving forum. Advice on shaving techniques, razor blades, shaving soaps, creams, brushes, and personal grooming. Great shaving forums and community.
https://www.atgshaving.com/