<i><a href="https://en.wikipedia.org/wiki/Nidhogg_(video_game)" class="extiw" title="en:Nidhogg (video game)">Nidhogg</a></i> trailer
Messhof (<i><a href="https://en.wikipedia.org/wiki/Nidhogg_(video_game)" class="extiw" title="en:Nidhogg (video game)">Nidhogg</a></i> creator)
<a rel="nofollow" class="external free" href="http://nidhogggame.com">http://nidhogggame.com</a> YouTube trailer (MP4 received by email from Messhof)