I really enjoyed Abel Trotter's "Dark Sorceries" adventure and would recommend it to anyone seeking a solo game should it go on sale.
What I absolutely love about this adventure is how it places your character in a community, as part of the community! This is something I try to do with my character as a PC in any campaign (who are my friends? What do we talk about?), so I really enjoyed seeing that in the game. The "Attitude" system, to track NPC's disposition towards your character, sounded very interesting, but in my playthrough, I only saw one alteration of attitude...I suspect other choices might have made other changes. I look forward to seeing greater use of this system in the future.
Of special note for solo players, at one point, you end up controlling an entire party of heroes against a balanced group of foes. The nice thing about it is that if you are playing a squishy character, you have other party members to help keep you out of melee. The down side for me was that I wasn't really expecting to run three other characters with class and levels while also running the badguys.
Fortunately, these NPC allies were of normal races and classes, and had statlines that keep them from outshining the PC without making them liabilities.
An interesting add-on to the NPC allies is that they each had a rechargeable "Bonded Ally" power that gave them a unique way to help out the PC. Only one NPC's "Bonded Ally" power would be available in the combat (based on the NPC's Attitude scores).
I think that the next time I GM a regular campaign, I will incorporate the Attitude and Bonded Ally ideas if my players pick up any NPC henchmen or allies.
I also like how, even though one's character is 2nd level and starts with basic first level gear, an explanation is worked into the storyline, as is the opportunity to pick up extra equipment that reflects the character's past experience.
Having played four other solo 5e titles over the last two weeks, I think this one is middle of the pack after balancing cost, story and variety of options. The writing was immersive. The story was interesting. The combat is nicely balanced, but it is a very linear adventure. I didn't get the impression that I had missed any signficant content in my playthrough (only clues or possible adjustments to ally Attitudes).
While I eagerly await the next installment of this campaign, I feel this first installment was too short of an adventure for the current $9.99 price. Still, compared to the price of a movie ticket, this was solid entertainment, and I can always run it again in a few months with a squishy character who would be less likely to surive the other solo adventures I've seen.
Thanks for the game! It's a good one!