Here is the full list of all 93 Renfield: Bring Your Own Blood achievements.
Finish a stage with Sun-Kissed Dracula using Sunlight 3 times.
Finish 5 stages with Mark.
Finish Livespring High using Cheerleader 5 times.
Finish Livespring High using Cheerleader 3 times.
Do the Kill Route using Dracula 9 times.
Do the Kill Route using Dracula 6 times.
Do the Kill Route using Dracula 3 times.
Finish 7 levels without picking up a powerup
Complete five levels with at least 3 different Nightmare Conditions.
Defeat 5 Bosses using Sister Charlotte.
Finish 4 levels without picking up a powerup
Complete three levels with at least 3 different Nightmare Conditions.
Defeat 3 Bosses using Sister Charlotte.
Defeat Dracula using Robert 5 times.
Defeat Dracula using Robert 3 times.
Finish 5 stages with Rebecca Quincy.
Finish 3 stages with Rebecca Quincy.
Finish 12 consecutive rooms without being damaged
Finish a level without picking up a powerup
Complete one level in Nightmare mode.
Defeat Dracula using Robert once.
Defeat Dracula using 5 different characters.
Finish Murder Room with 4 different characters.
Retrieve Dollymop
Use the special attacks of at least 15 different characters at least once.
Defeat Bella Lobo using Teddy Lobo 5 times.
Defeat Bella Lobo using Teddy Lobo 3 times.
Defeat Bella Lobo using Teddy Lobo once.
Defeat Dracula using 3 different characters.
Use the special attacks of at least 10 different characters at least once.
Kill a total of 300000 enemies
Defeat 1 Boss using Sister Charlotte.
Finish 3 stages with Mark.
Collect a total of 20000 Big Bugs
Finish Livespring High using Cheerleader once.
Finish a stage with Mark.
Use the special attacks of at least 5 different characters at least once.
Collect 500 artifacts
Kill a total of 150000 enemies
Finish 3 consecutive rooms without being damaged
Finish 7 consecutive rooms without being damaged
Finish a stage with Rebecca Quincy.
Collect a total of 10000 Big Bugs
Retrieve Escapee
Use 1000 powerups
Collect 1000 Moneybags
Kill a total of 75000 enemies
Collect a total of 5000 Big Bugs
Kill a total of 1500 enemies using Special Attacks
Collect 500 Moneybags
Use 600 powerups
Collect 200 artifacts
Deal 1,000,000 total damage using weapons
Finish 12 rooms with less than 20HP
Deal 500,000 total damage using weapons
Collect 200 Moneybags
Kill a total of 1000 enemies using Special Attacks
Summon Familiars 10 times.
Finish 5 rooms with less than 20HP
Kill a total of 500 enemies using Special Attacks
Collect 75 artifacts
Finish 3 rooms with less than 20HP
Die ten times
Die five times
Deal 200,000 total damage using weapons
Use 300 powerups
Retrieve Cheerleader
Finish a Boss fight within 150s
Finish a Boss fight within 100s
Finish a Boss fight within 50s
Summon Familiars 5 times.
Complete 10 challenge rooms.
Consume 10 Egg Heads within a single run
Complete 3 challenge rooms.
Complete 5 challenge rooms.
Use 6 unique powerups
Consume 5 Egg Heads within a single run
Consume 7 Egg Heads within a single run
Die one time
Use 1 unique powerup
Use 3 unique powerups
Summon a Familiar for the first time.
Finish a stage with Sun-Kissed Dracula using Sunlight 6 times.
Finish a stage with Sun-Kissed Dracula using Sunlight 10 times.
Finish Dracula's Castle with 4 different characters.
Finish Dracula's Castle with 8 different characters.
Finish Dracula's Castle with 12 different characters.
Defeat Dracula using 7 different characters.
Finish Murder Room with 8 different characters.
Finish Murder Room with 12 different characters.
Reach Wave 70 in Endless Mode with 3 different characters.
Reach Wave 70 in Endless Mode with 6 different characters.
Reach Wave 70 in Endless Mode with 9 different characters.