In quick summary, RimWorld is a singleplayer sci-fi (western?) top-down simulation game.

Involving a variety of management genres (combat, construction, crafting, etc), this game is heavily reliant on strategic planning and decision-making for survival.

The typical game progresses as such:

1. Construct
   
2. Combat
   
3. Recover

During any of these steps, you'll sometimes find yourself having to deal with random events, such as:

• Power failure
  
• Mad animals
  
• Eclipses
  
• Weather
  
• And quite a few others

Games are never (in-detail) the same. You'll always have different terrain, enemies, and situations to deal with.

• Unique character generation
  
• Intimate detail for pre-generated stories/backgrounds
  
• Fine-tuned combat statistics
  
• Realistic injuries/health
  
• Colonists require psychological cares, such as:
  
  • Entertainment
    
  • Adequately nice and clean living environment
    
  • Positive social interaction
• Wide variety of construction material, weaponry, and animal life
  
• Human (and mechanical!) enemies
  
• An entire randomly generated world to explore
  
• And a many other things I'm excluding in the sake of review length

• Great AI for your own colonists as well as enemies
  
• Massive modding community for replayability
  
• Multiple ways of reaching the end of the game
  
• Rather helpful play-along tutorial/tips GUI

• Updates are slow, and typically break mods (you'll be waiting for mod updates, as well)
  
• Lack of "official" content makes the vanilla game repetitive after some time

Sometimes I find myself growing attached to characters, and not because they're wielding expensive bionic modifications to their anatomy. It's as if you're really next to them, watching them go through the troubles of war, pain, tragedy, and suffering. Feels good, man.

I think the game is worth $30.

(Note: As long as RimWorld updates, this review may change.)