Tiny solitary soldiers
Stat up your Hero, Declare your setting.
These can be done as simply or as complex as you like. The more complex it is, the more detail you will have to work with and some answers may come easier to you. The more simple it is the more surprises will be in store. You can't lose.
Set your first Scene.
This is a short description of where the Hero is and what's happening.
At this time you should also come up with a Scene Goal for the Hero... This will determine when the scene is over (whether they achieved or failed at the goal).
Begin asking questions! A question can be either an Inquiry or an Action outcome. Questions must be in a yes/no answerable format.
For each question, roll a d6 and read the following result (If your Hero has a significant advantage, roll a second d6 along with it and choose the result. If a significant disadvantage, roll the second D6 but take the worst result for the hero):
1-No and 2-No 3-No But 4-Yes But 5- Yes 6-Yes And
"And" means even more than you expected, "But" means there is a limited effect or a drawback.
In addition, roll a different colored D6. This is the Twist Die.. If it comes up a 1, there is a twist to the scene.
What is the twist? Take 2 different colored D6, declare which one if "first" and roll them, then consult the following chart:
1st d6 1-NPC 2-PC 3-Organization 4-Physical event 5-Emotional event 6-Item
2nd d6 1-Appears 2-Alters the location 3-Helps the hero 4-Hinders the hero 5-Changes the goal 6-Ends the scene
Exactly what this two-word sentence means is up to your interpretation based on what you know about the goings on. This is even more open ended than the other systems I looked at, but I found it sufficient for my imagination.
Once the scene ends in some way (the protagonist's goal is met or failed) take a breath, and roll the next scene:
1d6
1-3: Dramatic scene 4-5: Quiet Scene 6: Meanwhile…
A dramatic scene means the action doesn't let up! A quiet scene means there is no immediate danger, probably a good chance to gather intel or discover more about the characters or situation. A Meanwhile scene is a remote location, and does not involve the protaginists! This should be immediately randomized as a twist and kept quite short. I haven't done one of these yet but I'm looking forward to it.
Some more randomizers may be helpful, such as the ones in Mythic or other games. I didn't really need them in my test game. What I did lean on a bit was name generators, of which there are many available as web pages online.