This is, off the bat, not as good as Vanilla Vampire Survivors. But it's fun, it's addictive and it has some really nice ideas on this budding genre compared to Vampire Survivor.
20 Minutes Till Dawn has you Select both a character (with a unique playstyle and 3 upgrades) and a starting weapon (with unique stats and quirks AND an upgrade choice). A good choice was to give fewer guns than characters, thus making sure no character has a "canon" weapon.
Then you select a mode (though only the standard mode got any use from me) and a map (three options but the Forest is painfully obvious as being the "default" "normal" map) then select the difficulty (from 0 to 15, unlocked be beating the prior one)
You also have access to runes. You have 4 tiers of 2 categories, each giving you 3 options having 5 ranks. You can select an Attack and Defense rune from each tier. I didn't play quite enough to engage with every single rune but they have some interesting options. Some are simple attribute buffs but others feel like actual in-game upgrades that were not included in the level up screen. it's pretty cool and not as.... boring as the meta-upgrades in Vampire Survivors.
In-game unlike Vampire Survivors, you default attack doesn't fire automatically. instead it works like twin-stick shooter. Aim and shoot your default gun to kill a few enemies as they spawn. Thankfully, you can toggle auto-aim. Sadly, you cannot toggle auto-shoot. Since this is essentially an autoshooter, you tend to spend the full 20 minutes of a run holding the mouse button and automatically shooting at anything that gets close to you.
The pool of upgrades has a few interesting options. They all fall within one of 3 categories to me. gun upgrades, summon upgrades and attribute upgrades. summons vary from a dragon egg that takes 3 gameplay minutes to hatch, then does a lot of damage firing fireballs to a scythe that just flies around you. Gun upgrades varie from procs to getting more bullets out of each bullet to stuff happening whenever you reload. Attribute upgrades affect stuff like max HP or movement speed. Additionally, each upgrade is either a basic one,which fork into two advanced and and converge back into one final one.
Enemy variety is a bit lower than in Vampire Survivors but the boss variety is greater and they are quite interesting!
Overall, though it falls a bit short in terms of variety and satisfaction. It's absolutely a fun game though! I'm curious about the sequel.
Tier 24, Ranked 203/518
Recommended: If you want a chill zone out game.