obsidian is not enough for game play

[tetsukh]

obsidian is make electronic's material , but only red zone spawn , it's not enough for
industrial chain.
iron ingot and gold ingot=>steel=>royal steel=>electronic=>void steel=>cosmic steel
=>beet sigil
that can touch off a lot of time's 10% double.
but only obsidian less spawn , broken this chain.
maybe void zone spawn/quarry spawn/dig with high level shovel can get some to balance?