Considered in this contribution are promising prospects for long-lived particle (LLPs) searches in e \(^{+}\) e \(^{-}\) collisions offered by the International Large Detector (ILD), with a Time Projection Chamber (TPC) as the core of its tracking systems, providing almost continuous tracking. Based on the full detector simulation, we study the possibility of reconstructing decays of both light and heavy LLPs at the ILD. We account for the soft beam-induced background (from measurable e \(^{+}\) e \(^{-}\) pairs and hadron photoproduction processes), expected to give the dominant background contribution due to a very high cross section, and show the possible means of its reduction. We also present the corresponding results for an alternative ILD design, where the TPC is replaced by a silicon tracker modified from the Compact Linear Collider detector (CLICdet) design.