Build a simple rocket with a lander consisting only of a Mk.1 lander can and parachute (or two if your destination has a thin atmosphere). The lander cannot be powered in any way. Land your lander safely on another planet, one with an atmosphere. Duna or Eve are good targets. The difficulty: detach the lander from your rocket before it exits the Kerbin sphere of influence. I did this with both Eve and Duna, so I know it is possible. Words of wisdom, make sure you are at 1x warp when you exit the Kerbin SOI and when you enter the target SOI. There seems to be precision loss if you are using warp as you cross those thresholds and will mess up your trajectory. EDIT: I hadn't thought of including added objectives or scoring, but since you asked: These scores are somewhat arbitrary based on the skill I imagine it would take to accomplish the tasks. Land on Duna: 100 points optional: 10 additional points for each complete orbit before final landing, up to 50 additional points optional: 70 points if you pass close enough to Ike to EVA and land a live Kerbal on Ike. Land on Eve: 80 points (larger margin of error because of thick atmosphere) optional: 10 additional point for each complete orbit before final landing, up to 50 additional points optional: 70 points to land your kerbal on Gilly with EVA Jool: 100 points for aerocapture (landing not necessary) optional: 150 additional points for EVA landing on Pol or Bop optional: Laythe: 300 additional points to Land on Laythe (with lander, not EVA). The 100 Jool aerocapture points are still awarded if you land on Laythe without a Jool aerobrake. 10 additional points per complete orbit of Laythe up to 50 points Rules: Kerbal must survive the landing, without debug or mods Deduct 100 points if a mod is used to plan the rendevous. Use of EVA is permissible, so if you're skilled enough to get out and push to make small corrections, feel free. Must not use debug There are a couple of known bugs / "features" in the Kerbal universe that can result in small amounts of delta-v being applied despite a lack of engines, and aside from pushing with the EVA pack. Avoid using these except to correct other precision bugs that throw your trajectory off if you know how.