Have you been using lighting conditions in the playtest?

[Teataine]

Example:
The Light spells illuminates 20 ft. with bright light.
A torch illuminates 20 ft. with bright light and an additional 20 ft. with dim light.
A goblin has darkvision of 60 ft. and goblins get +1d6 on advantaged attacks.

In some parts of the dungeon the goblins could then easily hide in the darkness beyond the reach of the PC's light source and gain a lot of benefits that way.

In the Actual Play of the playtest that I've read so far I haven't noticed anyone actually use light as part of the strategy/tactics.

Tell me of your experiences, if any.

 

[OnlineDM]

I've been dealing with light and my players, yes. Kobolds have disadvantage in bright light, so it's clearly important for them. I ran some players through the goblin / hobgoblin caves, and the limited Light radius was very relevant. The wizard had to start lighting up coins and tossing them into rooms full of goblins so that the other characters could see what they were attacking.

As the party moved through the caves, I only told them about what they could see, given the radius of the light and their senses (some have low-light vision).

 

[KesselZero]

We've used it a bit-- as mentioned in my playtest report, my wizard had to decide whether or not to Burning Hands into a dark room that the rogue may have been in. But I think our DM could have been stricter with the rules and nastier with the tactics. It was mostly not discussed except in specific moments.

 

[I'm A Banana]

Not really. It's a little too fiddly in ToTM to determine what is within a radius of light or not. I've basically gone with two things: "You can see," or "You can't see."

 

[jadrax]

I was actually thinking of having the Kobolds use their slings to shower the the PCs with something flammable (like rancid fat) to encourage them not to use torches, although unfortunately the wizards Light spell negates the need for naked flames.

 

[Blackwarder]

I was actually thinking of having the Kobolds use their slings to shower the the PCs with something flammable (like rancid fat) to encourage them not to use torches, although unfortunately the wizards Light spell negates the need for naked flames.

Not really, the wizard light spell only give you a 20 foot radius of bright light with no shadows beyond that, a torch is still better (and a continual light spell is the best).

Warder