I love the G Golem cards, but their restriction to only EARTH-Attribute materials makes them difficult to run in a normal Cyberse link-climb deck. This deck fixes that while also being cheap and easy to build. It doesn't have a TON of combo lines, but it's fun to play and makes them at least playable in a casual, or possibly even semi-competitive setting.
So your main play-starters are going to be Unexpected Dai, Pebble Dog, Rock Hammer, or Widget Kid.
Use Unexpected Dai to summon out one of your vanilla Cyberses, link it off into Link Spider, use Link Spider's effect to summon out another Vanilla from your hand (if you have one), and link those off into Stubborn Mehnir. Then you just need one more material on the field (you haven't even used up your Normal Summon at this point, but make sure your last material is a Cyberse monster. Ash Blossom won't link into anything) and you can link Mehnir with your other material to summon Crystal Heart. Use Crystal Heart's effect to revive Mehnir and trigger its effect to special summon and effect monster from your GY (you should have at least one, unless you only drew vanilla monsters and no searchers) and link off Mehnir and the revived monster to summon Transcode Talker (which is why you need an effect monster) and use its effect to revive Mehnir. If you have another way to get a monster on the board (which isn't difficult with this deck, I find that I have a way to do so more often than not) then you can link off Mehnir with your last material(s) to summon Invalid Dolmen or Dignified Trilithon. If you don't have another material, you can link off Transcode and Mehnir to make Dolmen, which renders both Crystal Heart and Dolmen immune to your opponent's monster effects.
This is your main combo line, but there are a ton of different variations to make it work. Rock Hammer's effect can send Dotscaper to the graveyard to Normal Summon itself and turns into minimum 4 materials on its own, 6 if you have a vanilla monster in hand (Link Spider into Mehnir into Crystal Heart). Pebble Dog and Painful Decision both give you easy ways to get Gravity Balance to come online, Widget Kid gives you 2 materials for free, Bitrooper can also discard Dotscaper or Pebble Dog to get an additional material or a search for Gravity Balance or Rock Hammer.
This isn't a highly meta deck, the best board I've been able to end on with this deck is Crystal Heart, Transcode Talker, and Dignified Trilithon, which isn't incredible, but it gives you a targeted-effect negate and two beefy monsters, and can turn into a solid OTK strategy due to Crystal Heart turning Transcode into a 3400 beater with piercing damage that can attack twice, allowing Dolmen or Trilithon to swing for game.
As far as Accesscode goes, you don't really need Accesscode. It's good to have, since the highest attack you can get with any consisitency is 3700, making certain decks really difficult to get over, so if you arrive at your end board and find that your opponent still has something you can't attack over, Accesscode gives you an option to pop it. You get two pops since you'll have an EARTH and a WATER in your GY, but at most you'll have 3 pops if you've used Ash Blossom that game, and without Update Jammer Accesscode isn't an OTK on its own.
Overall, the deck is fun, effective, and cheap, and the most effective way I've found to play the G Golem engine. It's kind've like an "Accesscode-At-Home" kinda deck, but I enjoy it and I hope you will, too!