Currently inserters can interact with tiles (put items into space/lava), but loaders cannot. Allowing the same thing for loaders would both make sense and enhance gameplay. As loaders do not exist without mods, this won't affect "vanilla" gameplay. There could also be a prototype property for more ...

by making number fields take formulas such as "quality_modifier*2", most properties if not all can be allowed to scale with quality.

Even with this system once a chain signal permits entry, the train will be able to pass through all the segments. While fuel, switching to manual and similar events are harder to account for, this could be presented as a new challenge (always keep your trains fueled or risk a crash) with a new kind ...

Currently when a chain signal is reserved, it instantly reserves the chain of segments in front of it. This leads to segments being unnecessarily blocked while there's no train passing. For example if a segment is blocked due to a chain of signals being reserved by a train arriving in 15 seconds, it ...

1- there should be a temperature settings to allow temperature-based power generation, including min/max temp, base (at min temp) and per-degree energy amounts (like 100J perliquid at base temp and 5J per additional temperature degree per liquid unit)
2- instead of a single fluidbox input, the API ...