Version changelog:
- In "sell resources" missions, only ask for resources that are available in player's colonies
- "Kill pirate" mission also counts as succeeded if the target is killed or captured by other country
- For "explore ruins" missions reveal unexplored ruins near player settlements
- Increased time to complete missions (+20% more turns)
- Limit trade with natives to simulate limited trade goods
- Prevent native settlements or AI colonies to be built over ruins