There are rather substancial differences between CODA and ICON, even though they can look similar.
Here's a very quick and dirty shortlist :
- Skill tests are done differently. While the basics are the same (roll dices, add skill, add positive or negative modifiers, try to beat a difficulty score), the details change a lot, and the probabilities are much different. I'd say it's easier in CODA to perform an extraordinary success for a medium difficulty task (the downside being that sometimes ordinary tasks can become too easy for an experienced character).
- Character creation and evolution is more streamlined in CODA than ICON, and a bit easier.
- Staship combat is vastly different in CODA and much better than ICON.
- A personal gripe of mine is that character combat is on the other hand a bit less detailed in CODA than ICON (but basically they are similar).
There are other differences, but those are the major ones I can think of right now.
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