SLIME-ISEKAI Memories：TenSura

The Active Codes table is reserved for shared public Global promotion codes that have current redemption support. When no code meets that standard, do not fill the table with old serial codes, invitation strings, purchase-tied codes, or unverified third-party entries.

The Expired Codes table preserves verified historical Global codes from earlier campaigns. This includes the April Fool's 2023 event codes and older Scarlet Bond movie serial codes that were once redeemable on the Global service.

Historical codes stay archived even when stale code databases continue to label them as active. Official event deadlines and positive failure reports take priority over recycled lists.

Current SLIME-ISEKAI Memories：TenSura promotion codes use the official Bandai Namco Entertainment Web Store. Confirm that the Bandai Namco ID shown by the store is linked to the intended game account before submitting a code.

Web browser

1. Open the official SLIME-ISEKAI Memories：TenSura promotion code page.
2. Select Login/New Registration and sign in with the Bandai Namco ID linked to your game account.
3. Verify that the displayed game account is the account that should receive the reward.
4. Enter the exact code in the Promo code field.
5. Complete the redemption.
6. Launch the game and check your Magicrystal balance or Gift Box for the delivered reward.

Bandai Namco requires a Bandai Namco ID linked to the game account before a current promotion code can be submitted through the Web Store. If the wrong account is displayed, correct the account link before entering the code.

Copy codes exactly as issued. Bandai Namco specifically warns that characters such as uppercase I, lowercase l, uppercase O, lowercase o, zero, and other similar characters can be confused during manual entry.

Do not treat an old in-game serial code, player invitation code, or purchase-tied individual serial code as a shared public promotion code. A historical code should only return to the Active table when current evidence establishes that the shared code is redeemable again.

Bandai Namco states that promotion codes can be distributed through campaigns and events. Check the official ISEKAI Memories website, official Global social channels, livestreams, celebration campaigns, collaborations, and the Bandai Namco Entertainment Web Store for new public promotion-code announcements.

Version 4.0.63 is the current SLIME-ISEKAI Memories：TenSura client version as of September 8, 2026. It is a bug-fix release that followed Version 4.0.60, which added cumulative rewards for monthly-pass subscriptions, improved the decision logic used during auto play, changed the application icon, and corrected existing issues. The official Japanese homepage is also currently advertising an active scout featuring Chloe and Hinata.

Players follow Rimuru Tempest through voiced recreations of the anime story and original scenarios supervised by light-novel author Fuse. The Nation-Building System lets players construct homes, restaurants, workshops, laboratories, and other facilities while expanding Tempest from a small settlement into a larger nation and interacting with residents.

Combat uses a 3D command system where players select cards from their current hand to perform attacks and abilities. Battle Characters fight directly, Protection Characters support the party, and powerful Secret Skills provide cinematic finishing attacks. Predator quests allow characters to acquire and improve skills, while Great Sage provides guidance and systems such as Parallel Processing reduce repeated manual farming.