Freeciv is a free clone of the turn based strategy game Civilization. In this game, each player becomes leader of a civilisation, fighting to obtain the ultimate goal: the extinction of all other civilisations.

kdeinit is a process launcher somewhat similar to the famous init used for booting UNIX.

HIDAPI is a multi-platform library enabling applications to easily interface with Bluetooth and USB HID-class devices.

libndp is a library for the IPv6 Neighbor Discovery Protocol (NDP). It contains functions for building and parsing NDP messages, and provides a high-level interface for sending and receiving NDP messages on a network interface.

libibverbs is a library that allows userspace processes to use RDMA "verbs" as described in the InfiniBand Architecture Specification and the RDMA Protocol Verbs Specification. iWARP ethernet NICs support RDMA over hardware-offloaded TCP/IP, while InfiniBand is a high-throughput, low-latency networking technology. InfiniBand host channel adapters (HCAs) and iWARP NICs commonly support direct hardware access from userspace (kernel bypass), and libibverbs supports this when available.