Talk:Combinator/@comment-411989-20160809035719

Anyone know precisely how the cost of combinations works? Sometimes it's a few K, other times a few mill and other times it's 1.5B or higher.

What I've gathered so far from observation is that:

1.  it seems like creating rings is sometimes (or maybe always) 2x the cost of non-rings.

2.  upgrading items with high range costs a lot.

3.  non-weapons with range cost a significant amount to upgrade

4.  Upgrade cost increases with each upgrade.