This is by no means a full list of all events. I've included some events that will be useful for any of us in Game Audio in terms of specific game audio only events, and other events that have some feature on game audio or may help with networking with game developers and others in the industry. I am based in the UK so have better knowledge of UK based events, if I've missed anything, let me know and I'll add it!
MAGfest
Jan 4-7
National Harbor, MD
(Game Music performances)
Pocket Gamer Connect
Jan 22-23
London, UK
(Showcases and good for networking/panels)
Game Audio North
3 Feb
Manchester, UK
Follow @GameAudioNorth on twitter for info!
Guildford Game Audio Meetup
14 Mar
Guildford, UK
SXSW Gaming Festival
Mar 15-17
Austin, TX
(Gaming Expo & Awards)
Game Developers Conference
Mar 19 - 23
San Francisco, CA
(Audio panel talks and "track" available)
Insomnia 62 Games Festival
30 Mar - 2 April
Birmingham, UK
(Networking, playing games)
London Games Festival
April 5-15
London, UK
(Various events and meetups!)
Game Audio North
April 7
York, UK
Now Play This
6-8 April
London, UK
(Networking/playing, no specific audio content)
EGX Rezzed
April 13-15
London, UK
(Networking, careers fair, developer talks)
BAFTA Games Awards
12 April
London, UK
(Sound/Music Awards)
Ludo2017
13-15 April
Leipzig, Germany
(Conference on game music and sound)
London Game Audio Drinks
14 April
London, UK
BAFTA Masterclass: The Art of Storytelling through Music
16 April
London, UK
Animex 2018
14-18 May
Teesside, UK
(Gaming 14-15 May, including composer Austin Wintory)
Digital Dragons
21-22 May
Krakow, PL
BAFTA Conversations with Screen Composers: Austin Wintory
29 May
London, UK
(Conversation about the creative process, and live art!!)
PLAYSTATION in Concert
30 May
London, UK
(Orchestral performance of game music)
E3 2018
12-14 June
San Francisco, LA
Get Your Game On | The Voice Over Network
22 June
London, UK
Develop: Brighton
10-12 July
Brighton, UK
Gamescom
21-25 August
Cologne, Germany
Women in Games Conference
11-12 September
London, UK
(No specific audio content)
EGX
20-23 Sept
Birmingham, UK
(Networking, no specific audio content)
GameSoundCon
9-10 October
Los Angeles, CA
(All your game audio needs!)
