Things you can do:
1)Make sure you have the name in your channel keywords -
https://www.youtube.com/advanced_settings?o=U (put it in quotes)
2)Put the name in your tags for each video on your channel. (Put it as one of your
last tags - Save the first few tags for the more important tags for each specific video)
3)Put it in your "about page" description. (
https://www.youtube.com/channel/UCuYqE3yA97zwVuS5YpjTQjA/about ) Currently, it reads "Hey everyone! Cryptic here" - Change it to "Hey everyone! Cryptic gaming here"
4) Put it in the video description of all your videos.
5) Don't put it in the titles of your videos - It's overkill and a waste of a title. Your competitor does this and it's very effective but it's not a good strategy to grow a channel. (see below)
Why ranking high for channel name isn't very important:
Bear in mind, it only becomes important to be found by channel name AFTER a channel is becoming popular. Think about this - As a small channel, not many people know your channel name. Only people who have
already visited your channel will know your channel name. New viewers (people you should be targeting) won't be searching for your channel name anyway right? It's much more important to target keywords that will bring
NEW viewers into your channel. That is how you will grow.
Example process to grow a gaming channel:
1) Identify something that is difficult or confusing to noobies in a particular game you play. Let's say players need to build a wooden bridge in Minecraft in order to win a bonus. (obv just an example) If you could get to number one for "How to build the wooden bridge in Minecraft", then your channel would grow 10x faster than if you were number one for "Cryptic gaming"
Also - I noticed your videos are very very long (many over an hour!) As a small channel, trying to grow, I'd strongly advise you keep videos short ( less than 10 minutes) and make them on specific, laser-focused topics like my example above and then get traffic to them using good SEO (Longtail keyphrase in the tags, title and description) and make sure the video gets straight to the point with no fluff.
Good luck.