Weekly Challenges Guide
Complete guide to Weekly Challenges in Retro Tower Defense: how they work, exclusive skins, early bird rewards, and how to complete challenge loadouts.
Last updated: September 2026
What Are Weekly Challenges
Weekly Challenges are a recurring feature introduced in the September 5, 2026 update. Each week, Plaything Games releases a set of challenges that task you with beating a specific map on a specific difficulty using a restricted or themed loadout. Completing a challenge rewards you with an exclusive tower skin that cannot be obtained through standard summoning, trading, or the in-game shop.
The system adds a consistent cadence of new goals beyond event content and daily missions, giving dedicated players a reason to revisit maps they might normally skip. Challenges reset every Monday, bringing fresh constraints and a new skin to earn.
Weekly Challenges appear alongside existing event systems like the Forsaken Collab and Armless Detective cross-promotion. They do not require Hard mode or Endless mode to attempt—Normal difficulty clears count for challenge completion on most weeks.
Challenge Structure and Requirements
Each Weekly Challenge specifies three constraints: the map, the difficulty tier, and a loadout requirement. The loadout restriction is the defining challenge element—it might ask you to use only Starter-tier towers, only towers from a specific rarity bracket, a fixed number of towers of a particular type, or a themed composition such as "all magic towers" or "melee only."
The difficulty tier refers to Normal, Hard, or Insane mode. Higher difficulties do not yield better skin variants, but some challenge skins have been noted to have early bird and standard variants that are cosmetic-only and do not affect gameplay. Clearing a challenge within the first 48 hours of its release window earns the early bird variant of the skin.
Modifiers such as faster enemy spawns, modified tower restrictions, or altered enemy health pools may be enabled during the challenge window. These modifiers change weekly alongside the core challenge parameters and add variety to runs.
Exclusive Skins and Early Bird Variants
The primary reward for completing a Weekly Challenge is an exclusive tower skin. These skins are unique to the challenge system and never appear on the standard summon banner, in the Token shop, or in the trading market. Each skin applies to a specific tower and has variants for early bird and standard completions.
Early bird variants are awarded to players who complete the challenge within 48 hours of the challenge going live. The early bird skin features distinct visual styling compared to the standard variant—often with additional particle effects, alternative color schemes, or animated elements that the standard version omits.
Skins earned through Weekly Challenges do not affect tower stats. They are purely cosmetic rewards. The Skins hub has the full catalog of challenge-exclusive cosmetics and their acquisition method.
Strategy and Preparation
Preparing for a Weekly Challenge starts before the week begins. If the upcoming challenge leaks or is hinted at through official social channels, reviewing your tower collection and identifying viable loadouts that satisfy the anticipated restrictions can save time when the challenge officially drops.
For loadout-restricted challenges, focus on building flexible compositions that cover multiple roles. A balanced core of Mage, Noli, and Helper Bot handles most Normal and Hard clears, but starter-only or rarity-gated challenges may require unconventional placements that reward creative tower usage.
Difficulty modifiers can be mitigated by positioning towers at chokepoints and leveraging AoE coverage early. Save upgrade currency for the final waves when boss enemies appear, and ensure your support towers are positioned centrally to maximize buff coverage across damage dealers.
Community Resources and Tracking
The Fandom wiki maintains a Weekly Challenge log that tracks each week's parameters, required loadouts, available skins, and community-reported early bird completion cutoffs. Check this resource before starting your attempt to confirm the exact constraints and difficulty settings.
Community Discord servers for Retro Tower Defense often have dedicated challenge-discussion channels where players share loadout solutions, placement maps, and early bird timing. Coordinated information sharing helps the community complete challenges faster and ensures accurate timing for early bird rewards.
Bookmark this page and check back each Monday for the latest challenge parameters. The wiki updates challenge information as soon as it is officially confirmed by Plaything Games.
Frequently Asked Questions
How do Weekly Challenges work? +
Each week, a challenge asks you to beat a specific map on a specific difficulty using a restricted loadout. Completing it earns an exclusive tower skin. Completing within 48 hours earns the early bird skin variant.
What rewards do I get from Weekly Challenges? +
Exclusive tower skins that cannot be obtained through summoning, trading, or the shop. Early bird completion within 48 hours yields a special variant of the skin.
Do I need Hard mode to complete Weekly Challenges? +
Most challenges can be completed on Normal difficulty. Some weeks may require Hard mode—check the specific challenge parameters each Monday.
Are challenge skins purely cosmetic? +
Yes. All Weekly Challenge skins affect only the tower's appearance and have no impact on stats or gameplay.
Where can I find the current week's challenge? +
The Fandom wiki tracks active challenges. Plaything Games also announces challenges on official social channels each Monday.