~50 Weapons, split between swords, staves, axes, etc.
~20 Different Enemies
~7 Unique Boss Characters
4 or 5 different "Platform" tile-sets (Different themes, one is dark ruins, one is grassy, etc.)
GUI elements for health, mana, actionbars, etc.

Depends on the quality you're looking for... Making up some random task time-frames, we could say:
.. 1 day per weapon * 50 weapons
+ 1 week per character * 27 characters
+ 1 month per tile-set * 5 sets
+ 1 week of GUI work
= 290 days = 2320 hours of work.
@ $20/h that's about $46k over a bit more than a year. You could easily double or halve that number though, depending on the quality you need.

~50 Weapons, split between swords, staves, axes, etc.
~20 Different Enemies
~7 Unique Boss Characters
4 or 5 different "Platform" tile-sets (Different themes, one is dark ruins, one is grassy, etc.)
GUI elements for health, mana, actionbars, etc.

Depends on the quality you're looking for... Making up some random task time-frames, we could say:
.. 1 day per weapon * 50 weapons
+ 1 week per character * 27 characters
+ 1 month per tile-set * 5 sets
+ 1 week of GUI work
= 290 days = 2320 hours of work.
@ $20/h that's about $46k over a bit more than a year

~50 Weapons, split between swords, staves, axes, etc.
~20 Different Enemies
~7 Unique Boss Characters
4 or 5 different "Platform" tile-sets (Different themes, one is dark ruins, one is grassy, etc.)
GUI elements for health, mana, actionbars, etc.

Depends on the quality you're looking for... Making up some random task time-frames, we could say:
.. 1 day per weapon * 50 weapons
+ 1 week per character * 27 characters
+ 1 month per tile-set * 5 sets
+ 1 week of GUI work
= 290 days = 2320 hours of work.
@ $20/h that's about $46k