Battle Fantasy
Battle Fantasy MOD is a medium sized content mod made with appreciation for Isaac and its Flash roots. Over 2 years in the making, the mod has grown to add the following features:

Several items based on classic Flash games, like Epic Battle Fantasy, Bloons, and Fancy Pants! Additionally, contains items that fit in with the Isaac environment, like Blood Pact, White Habanero, Mom’s Flowers, and more!

Many new trinkets with interesting usage and gimmicks, like OCD, Black Ticket, and Improbability Drive!

Including: a whole new set of tarot cards, the risky but rewarding Negative Suit Cards, and powerful cards like Gift Card and Muffin Time!

Including:
- A new pickup: The Smoky Chest
- A new Mausoleum enemy, Ragcharger, with over 170 rooms
- Special Super Secret Rooms that convert pickups, similar to the ones that convert heart types in vanilla
- 40+ Planetarium Rooms, pulled from Aero’s More Planetariums’ cancelled update
- A new challenge
- Achievements
- Secrets and Easter Eggs..?
- 450+ splash texts
- and more!
Team Fantasy hopes you enjoy Battle Fantasy MOD… as we have much more in store for you all.
This mod requires REPENTOGON to function. Many of the items use its functions for a smooth end-user experience and to execute functions that would normally be difficult without it. Download it from here.[repentogon.com]
- Items in the mod have compatibility with vanilla items such as Book of Virtues, Abyss, and Judas’ Birthright as necessary.
- All of the mod’s content has descriptions with External Item Descriptions, and more detailed descriptions, including nuances and trivia, with Encyclopedia.
- This mod has its own Dead Sea Scrolls menu to change its settings.
- The mod has compatibility with Fiend Folio’s items Fuzzy Pickle and Loaded D6.
- Most mods should work with this one without much of a problem, but of course, make a bug report if you manage to track an incompatibility down.

- Aeronaut – Director, Lead Designer, Programmer
- Pupzables – Lead Spriter, Designer
- ConBoi – Designer, Spriter, Room Maker, Promotional Images’ Drawings
- Sephaan – Spriter
- Shynova – Spriter
- Aleks_bog – Spriter
- Bagman64 – Spriter
- Linchalo – Spriter, Room Maker, Beta tester
- steve2552 – Designer, Room Maker, Recipe Maker
- Monwil – Beta tester
- catinsurance – Beta tester, Additional Feedback
- Reubzz72 – Beta tester
- Spoop – Beta tester
- ALADAR – Sunflower, Holy Bombs (item sprite)
- Kruntical – Spore Sac (item sprite)
- no name – Music Note familiars (v1)
- TheHGamer – Blazing Iris (item sprite) & familiar sprite (v1)
- Natalia.png – Development server’s icon
- BudgetPyx – Owner of the original concepts for Building Block and Negative Suit Cards, and sprite of Building Block; Long live Ascension
- Some code snippets owned/adapted from: catinsurance, Benny, Connor, KingBobson, Hybrid, MrSeemsGood, Xalum, hellfirebeah, RatRatRat, Oatmealine (All specific credits present in the mod’s code)
- VioVoid – Suspicious Heart.
- rarunia – This mod would not have started without your support and interest in my ideas, before I even learned how to mod. Thank you.
- gorg server – Gorp forever. Plab never. Stan Crystal Shard, always.
- Foks
- Kattack
- kerkel
- hellfirebeah
- HoneyVee
- skykittenpuppy
- TheTurtleMelon – For downloading/promoting previous mods I have made.
- LazyMattman, RogueWatermelon, RKeyNell, RomeLIVE – For promoting this mod when it was released.
- Matt Kupo, Ronja, & Phyrnna: Creators of Epic Battle Fantasy, the most epic and inspiring Flash game out there. (Seriously though, thanks for making such a great game that was the catalyst that inspired this mod in the first place)
Keep up with the mod in these ways:
- Our Bluesky: https://bsky.app/profile/battlefantasy.bsky.social
- Our Wiki on IsaacGuru: https://isaacguru.com/mod/battle_fantasy
- (Unmaintained) Our Twitter (definitely not X): https://x.com/BattleFantasy_
Found a bug or mod incompatibility? Report it in the thread with as much detail as possible, and we will hopefully be able to give it a look and fix it!
Required DLC:
These DLC should be installed in order to use this item.
The Binding of Isaac: Repentance
Required items:
Click the title to search on this site.
[BETA] REPENTOGON: Isaac Script Extender — Steam Workshop
Revisions:
Old revisions of this mod are available below. Click the link to download.