Three altcoins face key catalysts in late March 2026: Sandbox mobile launch, Onyxcoin mainnet, and Worldcoin price drop.

In the final week of March 2026, three altcoins stand at critical points with upcoming catalysts that could influence their prices. Sandbox (SAND) is poised for a potential breakout with the launch of its mobile playtest on March 26, which could boost user access and price. Onyxcoin (XCN) is supported by a rising EMA and the launch of its Goliath mainnet on March 27, expected to drive recovery after a recent decline. Meanwhile, Worldcoin (WLD) has completed a significant price drop and faces a target near its all-time low, with further downside possible unless market conditions improve. Investors should watch these developments closely as they may determine short-term price directions.