
Back 4 Blood — Co-op Zombie Shooter With Deck-Building Depth (Accounts, Top Up, Keys)
Back 4 Blood is a frantic 4-player co-op shooter from the creators of classic zombie hordes. Blast through campaigns and Ridden Hives, stack team synergies, and survive boss mutations while a dynamic AI Director throws ambushes and challenges your resources. If you want instant access, premium add-ons, or a clean profile, you can buy Accounts, handle Top Up, and redeem Keys on Allshop.gg.
How progression works (quick overview)
- Deck-building: Equip cards for stamina, ammo economy, healing, weak-spot damage, and utility to shape your build and team role.
- Currencies:
- Copper (in-run) buys meds, toolkits, and upgrades at each safe room.
- Supply Points (meta) unlock cosmetics and card paths through Supply Lines.
- Skull Totems (from Hives) purchase special cosmetics and track-specific items.
- Modes: Campaign (solo/coop), No Hope/Nightmare difficulties, Hives, and seasonal events keep the loop fresh.
> Need a jump start? Use Top Up for add-ons/bundles or edition upgrades, grab a Key for instant access, or start on a ready Account—all via Allshop.gg.
Keys & Accounts — quick ways to play
- Keys (product/activation codes): Unlock the base game or higher editions (with DLC) instantly—great for gifting or a new PC.
- Accounts: Begin with a clean profile and content entitlements set up; ideal for alt runs or joining friends at higher difficulties without re-grinding early unlocks.
Build & Optimize Guide
- Define your role:
- Frontliner: temp health, melee stamina, damage reduction.
- Cleaner/Support: healing efficiency, revive speed, team auras.
- Utility/Toolkit: extra slots, quick use, copper find, and door/toolkit access.
- DPS/Weak-spot: accuracy, reload, recoil, weak-spot multipliers.
- Card curve matters: Place early-game staples (stamina, reload, +HP) at the top of the deck; economy and niche picks later so Act 1 feels stable.
- Copper discipline: Always carry one Toolkit for loot rooms; prioritize team upgrades (ammo/health) before luxury buys.
- Gun + attachment pairing: Don’t chase rarity alone—build for recoil control, mag size, and weak-spot damage that fits your card plan.
- Team synergies: One copper/loot spec, one healer, one CC/stagger build, one DPS anchor—overlap wastes card slots.
Fast-Track Advice
- Top Up with intent: Pick edition upgrades or content packs that add Hives/maps/cards you’ll actually run; skip cosmetic-only buys until your decks are set.
- Stagger control wins boss fights: Pack stun/frag nades and keep one “panic button” card (e.g., speed/heal spikes) for ogres and breakers.
- Toolkits pay for themselves: Hidden rooms = meds, ammo, and purple attachments that turn bad runs around.
- Economy card early, not late: One copper-boost card near the top of your deck funds upgrades all act long.
- Account hygiene: If you purchase an Account, bind it securely and keep recovery details private.
Back 4 Blood blends explosive co-op action with meaningful deck-building and resource strategy. Use Keys for instant access, Top Up for value-dense add-ons and upgrades, and consider ready Accounts to skip early unlocks. You can buy Accounts, Top Up, and Keys on Allshop.gg—then lock your deck, grab a toolkit, and crack open the next safe room.

